Once Upon A TTRPG

D100 Saltwater Fish

A roll-table of 100 saltwater fish and sea creatures for coastal towns, open-ocean voyages, reefs, and deep-sea encounters. Roll a d100 (or d10 twice for a d10x10 table). Mix mundane market fare with stranger deep-water catches as needed for your table’s tone.

#FishDescriptionUsesMagical/Poisonous Effects
1Silverjaw SardineA small, oily schooling fish found in massive shoals near the surface.Cheap food, salted and barreled for long voyages.None.
2Coastal MackerelA fast, striped fish common in harbor waters.Popular market fish; smoked or grilled fresh off the docks.None.
3Flatscale FlounderA camouflaged, bottom-dwelling fish with both eyes on one side.Delicate white meat, prized by inland buyers as an exotic import.None.
4Redgill SnapperA reef fish with vivid red-orange scales.A staple of coastal cuisine; scales used in cheap red dye.None.
5Common CodA large, meaty fish found in cold coastal waters.Salted, dried, and shipped inland as a durable food source.None.
6Silverfin HerringA small, abundant fish that travels in enormous schools.Cheap food and fertilizer; oil rendered for lamps.None.
7Rockpool BlennyA tiny fish that hides in tide pools at low tide.Rarely eaten; popular with children collecting tide pool creatures.None.
8Bluefin RunnerA sleek, fast-swimming fish prized by sport anglers.Excellent eating fish; considered a luxury at coastal inns.None.
9Barnacle GrouperA large, slow, heavily camouflaged fish that lurks near wrecks and reefs.Tough but flavorful meat; a favorite of dockside chowder houses.None.
10Spinefoot RabbitfishA reef fish with venomous dorsal spines.Meat is safe once properly cleaned; spines discarded carefully.Venomous spines; a sting deals 1d4 poison damage and causes swelling for 1 hour.
11Tideglow AnchovyA tiny fish whose scales shimmer faintly blue in moonlight, common in shallow bays.Sold cheaply in bulk; glow fades quickly once out of water.Crushed scales used as a minor component for light-based cantrip substitutes.
12Whisperfin RayA flat, graceful ray that glides silently along sandy seafloors.Wings are a delicacy when grilled; skin used for durable leather.None, though a startled ray may whip its tail for 1 bludgeoning damage.
13Frostcurrent CodA pale cod found in far-northern coastal waters, cold to the touch.Naturally preserves longer than normal cod; valuable to northern traders.Eating it raw grants resistance to cold damage for 1 hour.
14Coral ClownfishA small, brilliantly striped fish that lives among anemones.Rarely eaten; popular as an ornamental pet in coastal noble houses.None.
15Bellbuoy CroakerA fish whose swim bladder produces a low droning croak, audible from the surface.Rarely eaten; bladder used to craft simple underwater signal devices.None.
16Inkcloud SquidfishA small, squid-like fish that releases a defensive ink cloud.Ink used as cheap writing ink; meat is chewy but edible.Ink cloud can obscure a 5-ft radius underwater for 1 round if harvested and thrown.
17Glassreef SilversideA near-transparent fish that schools in dazzling, shifting clouds near reefs.A delicacy served whole and fried; prized for presentation.None.
18Bilgewater EelA hardy eel that thrives in polluted harbor water and ship bilges.Rarely eaten willingly; occasionally used in unsavory dockside stews.None, but associated with unclean water โ€” may carry minor disease risk (DM’s discretion).
19Deepwater HalibutA massive, flat fish found on the continental shelf.Highly prized food fish; can feed a whole crew from one catch.None, but can weigh over 300 lbs and requires teamwork to land.
20Duckbill MulletA silvery harbor fish with a flattened, scoop-like snout.Common street food, fried whole and sold by vendors.None.
21Thornback RayA ray covered in small, sharp spines along its back.Meat is tasty once cleaned; spines sold to fletchers.Careless handling deals 1 piercing damage and requires a DC 10 Con save or be poisoned for 1 hour.
22Moontide HerringA pale, luminous herring that surfaces in massive shoals only during certain tides tied to the moon.Considered a lucky catch by sailors; sold at a premium during moon festivals.If eaten during a full moon, grants advantage on the next Wisdom saving throw.
23Coppertail WrasseA reef fish with a metallic copper-colored tail fin.Ground scales used as a minor component in copper-detection rituals.None beyond alchemical use.
24Sawtooth BarracudaA long, fast, aggressive predator with razor teeth.Tough, strong-flavored meat; teeth sold to craftsmen for weapon inlays.A live one can bite for 1d6 piercing damage if handled roughly.
25Driftwood PipefishA slender, twig-like fish that mimics floating driftwood and seaweed.Rarely eaten; prized by alchemists for its camouflage properties.Extract from its skin can be used as a minor component in disguise-related alchemy.
26Barrelbelly PufferfishA round, spiny fish that inflates dramatically when threatened.Considered a delicacy by daring chefs, but deadly if improperly prepared.Highly toxic if not expertly cleaned; improper preparation requires anyone eating it to make a DC 15 Con save or take 4d6 poison damage and become poisoned for 24 hours.
27Glasswater GobyA small, nearly transparent fish that hides among coral crevices.Rarely eaten; prized by scholars studying reef ecosystems.None, but very difficult to spot (DC 15 Perception in clear water).
28Ashfin TunaA large, powerful tuna found near volcanic sea vents, with dark, ash-streaked scales.A prized delicacy for its rich, smoky flavor.Resistant to fire; eating it grants resistance to fire damage for 10 minutes.
29Ripplejaw SpratA common harbor fish that makes distinct splashing ripples when feeding at dawn.Basic food fish, popular bait for larger catches.None.
30Bloodtide Piranha-KinA vicious, schooling saltwater predator found in warm tropical shallows.Feared by swimmers; meat is edible but unpopular.Attacks in schools; a swarm can deal 1d4 piercing damage per round to a bleeding creature in the water.
31Starlit AngelfishA rare reef fish whose scales seem to hold tiny points of light.Kept in temple tide-pools; considered an omen fish by coastal cultures.At night, sheds dim light in a 10-ft radius; killing one is considered bad luck in local folklore.
32Ironscale TarponA large fish with unusually hard, metallic-grey scales.Scales too tough to eat easily; ground into polish for armor.Scales have resistance to being pierced; used in minor armor crafting as reinforcement flakes.
33Witherfin EelA gaunt, sickly-looking eel found near sunken wrecks and cursed coastal waters.Avoided by most sailors; sought by necromancers and hedge witches.Eating it requires a DC 13 Con save or take 2d6 poison damage and become poisoned for 1 hour.
34Honeyscale SnapperA reef fish with a faint golden sheen and naturally sweet-tasting flesh.A prized delicacy, often grilled with citrus and salt.None.
35Stormrider MarlinA massive, powerful fish said to leap from the water during storms.Trophy sport fish; meat tastes faintly metallic and is highly prized.If caught during a storm, its flesh can be used as a minor component in lightning-based alchemy.
36Pale Abyssal GrouperA blind, colorless fish found in deep-sea trenches.Rare delicacy for its unusual, buttery texture.None, but only found in deep, lightless waters โ€” a clue to nearby trench systems.
37Wartclub ToadfishAn ugly, warty saltwater fish with a stout, club-like tail.Rarely eaten (bitter); sold as a novelty or used in prank potions.Slime causes mild skin irritation; DC 8 Con save or disadvantage on Charisma checks for 1 hour from the smell alone.
38Featherfin ButterflyfishA fast, brightly colored reef fish with delicate, feather-like fins.Popular in ornamental saltwater tanks; occasionally used in dye-making.None.
39Bonecrusher SwordfishA massive, aggressive predator fish with a long, blade-like bill.Trophy fish for hunters; tough meat requires long cooking.Its bill can deal 2d6 piercing damage if it attacks a creature or small boat.
40Duskveil MorayA shadowy eel that becomes nearly invisible in murky reef water.Meat is tender; skin used for enchanted cloaks (minor stealth bonus).Grants advantage on one Stealth check in water if its skin is worn as an accessory.
41Glimmerscale SpratA tiny schooling fish whose scales sparkle like scattered gems.Sold in bulk to alchemists as a cheap shimmer-dust substitute.Crushed scales can be used as a cheap material component substitute for spells requiring “a pinch of shiny sand.”
42Hullgnawer FishA fish known to chew on submerged wooden ship hulls and dock pilings.A nuisance to shipwrights; meat is edible and mild.Can gnaw through soft wood; sometimes considered a hazard to wooden-hulled ships in large numbers.
43Sapphire DamselfishA small, brilliant blue reef fish found in only the clearest tropical waters.Highly sought by jewelers for scale-based inlay work.None, but only found near pristine, healthy reefs.
44Grumbling Toadhead FishA saltwater fish with a bulbous head that makes a low croaking noise when caught.Amusing catch for sailors; meat is tough and unremarkable.None.
45Vaporfin FlyingfishA fish that releases a faint mist and glides briefly above the water’s surface.Rarely eaten; mist-glands used in fog-effect stage props and minor illusions.Its gland, properly prepared, can create a small patch of harmless fog (5-ft radius, lasts 1 minute).
46Deepwater AnglerfishA grotesque fish with a bioluminescent lure, found in the deep, lightless ocean.Rare delicacy for the adventurous; lure organ sold to alchemists.Lure organ can be harvested to create a small everburning light source (dim light, 10 ft, lasts 24 hours before fading).
47Chalkreef ParrotfishA common reef fish that grinds coral with beak-like teeth, leaving fine white sand in its wake.Popular in island cuisine; helps maintain healthy reefs.None.
48Boneplate Sturgeon-RayAn ancient, heavily armored ray with bony plates instead of smooth skin.Plates used as crude natural armor scraps by desperate crafters.Plates provide minor AC bonus (+1) if worked into leather armor by a skilled leatherworker.
49Sicklefin JackA silvery fish with a distinctly curved, sickle-shaped fin.Common food fish, sold in large schools’ worth at once.None.
50Tanglehook CongerAn eel notorious for wrapping around fishing lines and hooks, hard to land.Frustrating to catch; tough, stringy meat once cooked long enough.None, but requires an extra DC 12 Dexterity check to land without it escaping.
51Witchlight LanternfishA tiny deep-sea fish that glimmers with a faint, eerie green light after dark.Feared by superstitious sailors as a bad omen; alchemists seek it eagerly.Ground into paste, it can be used as a minor light-based spell component substitute.
52Blightscale HerringA herring found in polluted or magically tainted harbor waters, with mottled, diseased-looking scales.Never eaten; used as an indicator of tainted water sources.Eating this fish requires a DC 15 Con save or contract a minor disease (disadvantage on Con checks for 1d4 days).
53Ripcurrent Salmon-SharkA powerful, muscular fish that patrols strong coastal currents (not a true shark, despite the name).Highly prized food fish; a favorite for smoking and preserving.None, but a strong catch โ€” requires a DC 13 Strength check to land without snapping the line.
54Hollowbone NeedlefishA slender fish with unusually light, hollow-seeming bones and a needle-like snout.Meat is fine but unremarkable; bones ground into a minor levitation-adjacent alchemical reagent.Bones used in minor featherfall-adjacent potions (reduces fall damage by 1d6 once, DM’s discretion).
55Duneshadow FlatfishA large fish found buried in sandy seafloors, ambushing prey from below.Tough but flavorful meat; a favorite of coastal fishing villages.Can ambush from sand with surprise; if roleplayed as a hazard, may startle a wading creature.
56Prism WrasseA reef fish whose scales split light into rainbow patterns when wet.Highly prized ornamental catch; occasionally eaten at festivals.None, but scale dust can be used as a harmless component for illusion-based cantrips.
57Gravelthroat SoleA bottom-feeding fish with a wide sucking mouth used to filter sand and gravel.Cheap food, though bony; used in fish paste for poorer coastal communities.None.
58Everfrost IcefishA fish found only in polar or magically frozen seas, with near-transparent, antifreeze-laced blood.Meat stays fresh indefinitely if kept cold; a novelty at feasts.If eaten, grants resistance to cold damage for 1 hour (does not stack with other sources).
59Rustbelly SnapperA fish with reddish-orange scales that resemble rust patches.Common food fish in shipbuilding and mining coastal towns.None.
60Sablefin MorayA dark, slender eel that hides in reef crevices during the day.Used in stews; slime occasionally used as a crude waterproofing agent.None.
61Fatewhisper Koi-RayAn exceptionally rare, koi-patterned ray said to appear only before significant events.Never sold; considered a powerful omen if caught.Catching one grants advantage on the next Wisdom (Insight) check made within 24 hours (DM’s discretion, one-time use).
62Screaming EelA saltwater eel that emits a piercing shriek when pulled from the water.Rarely eaten due to the ordeal of catching it; used to startle intruders in coastal moats.The shriek can be heard up to 100 feet away, potentially alerting nearby creatures.
63Sunset SnapperA fish with orange-red coloring that deepens at dusk.Popular at evening dockside markets for its vivid color when served.None.
64Tidebound SalmonA migratory fish that moves between river and sea, carrying faint tidal magic.Prized by sailors and coastal folk for luck.Eating it grants advantage on the next saving throw against being knocked prone by water or waves (DM’s discretion, one-time use).
65Gloomfin RockfishA dull grey fish found in shaded, kelp-choked coastal shallows.Bland but filling food fish.None.
66Shatterscale MackerelA mackerel whose scales are brittle and shatter loudly when it thrashes.Meat is fine; shattered scales sometimes used as a component in noise-based alchemical items.Scales can be ground into a component for a minor noisemaker trap or alarm.
67Duskwater GrouperA fish active primarily at twilight, with dusky purple-grey scales.Popular with anglers who fish at dusk from the docks.None.
68Cloudfin RayA pale ray with wispy, cloud-like fin patterns.Common food fish; considered lucky by sailors.None.
69Kelpshadow Pike-EelA reed-colored eel that blends seamlessly into kelp forests.Prized ambush-hunter’s trophy; tough, gamey meat.Very difficult to spot while stationary (DC 16 Perception).
70Ninefin FlyingfishA flyingfish mutated (or blessed) with nine fins instead of the usual set.Considered a lucky catch; rarely eaten, often released.Superstition holds that releasing one grants good luck (DM’s discretion: advantage on next death saving throw).
71Corpsewater EelAn unsettling eel found near shipwrecks and drowned coastal graves.Avoided by the superstitious; necromancers occasionally seek it.Eating it requires a DC 14 Con save or become frightened of the next undead creature encountered within 24 hours.
72Silverstream SalmonA common, healthy salmon found near river mouths and clean coastal waters.A staple food fish; smoked and traded widely.None.
73Bellyaching BlowfishA puffer-adjacent fish known to cause stomach upset if not cooked thoroughly.Cheap food fish, but risky if prepared carelessly.Undercooked meat requires a DC 10 Con save or suffer 1 hour of poisoned condition (mild food poisoning).
74Duskcrown AngelfishA regal reef fish with a marking resembling a crown on its head.Kept by nobility as a symbol of status; occasionally gifted diplomatically.None, but a valuable gift fish (worth 10-50 gp to the right buyer).
75Riftgill LampreyA strange lamprey said to occasionally swim out of planar rifts near deep-sea ley lines.Rare and unsettling catch; sought by planar scholars.Its flesh, eaten fresh, grants a 1-in-6 chance of brief (1 round) truesight as a bizarre side effect (DM’s discretion).
76Wickerfin DamselA small, flat reef fish with fin patterns resembling woven wicker.Common tide-pool fish; popular with children learning to fish.None.
77Frenzybite Piranha-KinAn aggressive saltwater cousin found in warm, murky tropical shallows, known to swarm.Feared predator; rarely eaten due to difficulty catching safely.A swarm can deal 2d4 piercing damage per round to a bleeding creature in the water.
78Moldwater BlennyA fish found in damp, moldy sea caves connected to the tide.Rarely eaten; used in the creation of minor mold-based alchemical reagents.None directly, but associated waters may carry disease risk (DM’s discretion).
79Glassy SilversideA nearly transparent fish that schools in massive, shimmering numbers near shore.Popular in fine dining, served whole and fried crisp.None.
80Ashenfin TunaA grey-black fish found in waters near undersea volcanic vents.Smoky flavor; popular with sailors and coastal hunters.None.
81Fablefin MarlinA marlin said to only bite on hooks baited with a truthful confession spoken aloud by the angler.Legendary catch among folk anglers; meat said to taste of memory.Local legend: eating it grants advantage on the next Charisma (Persuasion) check involving honesty (DM’s discretion, one-time use).
82Nightpool EelAn eel found only in sea caves that never see direct sunlight.Pale, delicate meat; considered a delicacy among cave-dwelling coastal folk.None.
83Tollbooth ToadfishA territorial fish said to “guard” narrow harbor channels, nipping at those who pass.More nuisance than food; occasionally trained by mischievous sea-druids.Can deliver a startling but harmless nip (no damage) to wading creatures, imposing disadvantage on the next Stealth check.
84Ripplecrown SnapperA snapper with a fin pattern resembling a small crown of ripples.Considered a lucky fish among coastal merchants.None.
85Weirdwater GrouperA grouper found near sites of old magical maritime disasters, with faintly shifting scale colors.Alchemists pay well for it; rarely eaten due to unpredictable effects.Eating it triggers a random minor magical effect (DM’s discretion โ€” roll on a wild magic-adjacent table, or treat as harmless).
86Bramblefin ScorpionfishA spiny-finned fish that hides among coral rubble and rocks.Tricky to clean due to venomous spines, but tasty once prepared.Venomous spines; careless handling deals 1d4 poison damage and requires a DC 12 Con save or be poisoned for 1 hour.
87LoreleifinA hauntingly beautiful fish said to occasionally hum in tune with nearby singing, found near sirens’ reputed haunts.Rarely caught; sought by bards for its scales, used in enchanted instrument crafting.Scales can be used as a component in crafting an instrument that grants advantage on one Performance check per day (DM’s discretion, requires downtime crafting).
88Cinderscale BassA bass with dark red scales found near warm undersea thermal vents.Popular at coastal spa towns; considered good for one’s health (folk belief).None.
89Hexgill Catfish-RayA ray with an odd, six-gill mutation, found near sites of old hedge-witch rituals near the coast.Avoided by most; sought by witches and warlocks for its unusual anatomy.Its gills, dried and burned, can be used as a substitute material component for a spell of 1st level or lower (single use).
90Duskmarsh MulletA mullet adapted to murky, brackish estuary water.Common food fish in coastal marsh villages.None.
91Seaking MarlinAn unusually large, old marlin said to lead its migratory pod for decades.A trophy catch of legendary size; meat feeds a whole feast hall.Catching one is a notable local event; may grant a boon from a sea-associated deity or spirit (DM’s discretion).
92Featherscale AngelfishA reef angelfish with impossibly delicate, feather-thin scales that shimmer iridescent.Extremely valuable ornamental fish; rarely eaten.None, but worth significant coin (20-100 gp) to the right collector.
93Stormfin SailfishA sailfish that grows more aggressive and active during thunderstorms.Exciting, dangerous catch; tough meat.During a storm, deals an extra 1d4 piercing damage if it strikes a creature or small boat.
94Pale WidowfishA ghostly white fish found in waters where shipwrecks and drownings have occurred, according to sailor legend.Avoided by superstitious sailors; morbidly sought by collectors of oddities.Eating it requires a DC 12 Wisdom save or experience unsettling dreams for one night (no mechanical effect, roleplay only).
95Sagefin RayA ray found near sea-druidic shrines and sacred tide pools, with faint green-tinted markings.Considered sacred by druidic circles; eating one without permission is taboo.If eaten with proper ritual, grants advantage on the next Nature or Survival check (DM’s discretion, one-time use).
96Deepglow AnglerfishA rare, bioluminescent anglerfish found in the deepest ocean trenches.Alchemists prize its light organ highly.Light organ can be harvested to create a small, permanent glowing trinket (dim light, 5 ft).
97Truthscale HalibutA halibut said to swim only in waters blessed by lawful sea deities, with unnervingly clear eyes.Sought by paladins and clerics; rarely eaten out of reverence.Legend claims eating it makes lies told within the hour taste bitter to the speaker (roleplay effect, DM’s discretion).
98Wyrmwater EelA massive, serpentine sea eel rumored to be a distant, diminished kin of true sea dragons.An impressive trophy; tough, richly flavored meat.Requires a DC 15 Strength check to land; scales occasionally used as a minor component in resistance-granting alchemy.
99Starfall Koi-RayAn impossibly rare ray whose markings are said to contain flecks of fallen starlight.Never sold; the stuff of legend and sailors’ tales.Once per long rest, a creature who eats a bite of Starfall Koi-Ray flesh can reroll one failed saving throw (DM’s discretion โ€” a powerful, campaign-defining catch).
100The Sovereign of the Deep TrenchA colossal, ancient fish of unknown true species, said to rule one specific ocean trench for centuries. Easily large enough to be mistaken for a sea monster.Not a fish anyone “uses” โ€” a boss-tier encounter or legendary quarry, not a meal.A living legend: may possess minor spellcasting, control over local currents, or serve as guardian of a sunken treasure or drowned ruin (fully DM’s discretion โ€” treat as a unique creature, not a generic fish).

Notes for use:

  • Entries 1โ€“30 are mostly mundane, safe for everyday fishing minigames, cooking, or coastal market flavor.
  • Entries 31โ€“70 introduce mild magical quirks, alchemical uses, or minor hazards โ€” good NPC quest hooks (“bring me three Vaporfin Flyingfish for my potion”).
  • Entries 71โ€“99 lean into rarer, stranger, or more dangerous catches โ€” good rewards for a dedicated fishing subplot or a sailor/druid character.
  • Entry 100 is intended as a one-of-a-kind legendary catch or mini-boss, not a repeatable roll result โ€” consider rerolling if it comes up twice, or save it for a specific narrative moment.
  • A few entries (Barrelbelly Pufferfish, Spinefoot Rabbitfish, Bramblefin Scorpionfish) carry genuine poison risk and work well as a “know your ingredients” cooking hazard for a party chef or tavern-keeper NPC.
  • Poison/disease effects are calibrated to be mild-to-moderate inconveniences rather than deadly threats, in keeping with “flavor hazard” rather than combat encounter โ€” adjust DCs and damage to fit your table’s power level.

Leave a Reply

Your email address will not be published. Required fields are marked *

© 2026 Once Upon A TTRPG Built with the Homebrew Chronicle theme