Mods / Fish

• DDeep Sea Pack - Definitve Editionby 76561198880010479Both previous Deep Sea Packs combined and updated with new mechanics from Deep Freeze, plus some new animals! This mod contains: Amadako Octopus Azuma Perchlet Big Rougy Boarfish Botan Shrimp Cherry Blossom Seastar Deep Sea Spider Deep-sea Skate Deep-sea Sole Deepwater Arrowtooth Eel Eightbar Gro...1.9k downloadsupdated 2 y ago
• JJapanese Sealife Pack Part 2 - The Depthsby 76561198880010479Adds 32 species from the depths that surround Japan to your game. This mod includes: Acutenose Skate (Dipturus tengu) Alaska Pollock (Gadus chalcogrammus) Barrel Amphipod (Phronima sedentaria) Blackspotted Sea Cucumber (Parastichopus nigripunctatus) Bone-eating Worm (Osedax sp.) Boschma's Dendro...1.9k downloadsupdated 8 mo ago
• AAtlantic Tarponby RappyAdds the Atlantic tarpon (Megalops atlanticus), the legendary 'silver king', to your aquarium. This fish unlocks at Rank 10.1.9k downloadsupdated 5 y ago
• AAbyssal Packby 76561198880010479Adds eight species for your abyssal tanks! This mod includes: Oriental Armoured Gurnard Doederlein's Giant Isopod Glass Squid Grideye Stoplight Loosejaw Pacific Footballfish Thorny Tinselfish Wolftrap Seadevil1.9k downloadsupdated 21 mo ago
• GGulf Stream Aquaria - Swallowtail Seaperchby RappyAdds the swallowtail seaperhch (Anthias anthias), also known as the marine goldfish or simply 'anthias', into your game. This fish unlocks at Rank 8.1.9k downloadsupdated 3 y ago
• GGreat Barrier Reef Packby 76561198880010479Explore the diversity of life on the world's largest coral reef system with these 30 species! This pack includes: Arceye Hawkfish Arrow Dartfish Barred Soapfish Bicolour Goatfish Blackaxil Chromis Blacksaddle Coralgrouper Blue Assessor Brassy Trevally Coral Rabbitfish Dark Surgeonfish Doubleline...1.9k downloadsupdated 2 y ago
• RReef Triggerfishby RappyAdds the reef triggerfish (Rhinecanthus rectangulus), Hawaii's state fish, to your aquarium. This fish unlocks at Rank 4. Credit to grossebertha for the base model.1.9k downloadsupdated 5 y ago
• GGulf Stream Aquaria - Conspicuous Angelfishby RappyAdds the conspicuous angelfish (Chaetodontoplus conspicillatus) to your game. This rare and expensive aquarium denizen is found in the Great Barrier Reef, Lord Howe Island, and New Caledonia. Unlocks at Rank 10.1.9k downloadsupdated 8 mo ago
• AAustralian Sealife Bonus Pack - White-Barred Boxfishby 76561198880010479Adds the White-Barred Boxfish to your game! The White-Barred Boxfish (Anoplocapros lenticularis) is a member of the family Aracanidae, a group closely realated to but a bit more primitive than the true boxfish. It dwells in deep water off the southern end of Australia and feeds on invertebrates....1.9k downloadsupdated 5 y ago
• GGulf Stream Aquaria - African Pygmy Angelfishby RappyAdds the African pygmy angelfish (Centropyge acanthops) to your game. This feisty fireball of a fish fears little and will nip at almost any sessile invertebrate in its reach. Unlocks at Rank 6. Part of the small fish modding challenge.1.9k downloadsupdated 3 y ago
• AAfrican Banded Barbby RappyThis mod adds the African banded barb (Enteromius fasciolatus) to your aquarium. These colorful crepuscular cyprinids are found across a wide swath of south-central Africa, living in various acidic blackwater habitats from gently flowing rainforest streams to vast floodplains. Unlocks at Rank 6.1.9k downloadsupdated 5 y ago
• BBLUE - Bunch O Blenniesby Irritating FishLet loose a bunch of beautiful blennies to your aquariums, representing 5 of the 6 major blenny families! Butterfly Blenny (Blennius ocellaris) Mexican Barnacle Blenny (Acanthemblemaria macrospilus) False Cleanerfish (Aspidontus taeniatus) Giant Kelpfish (Heterostichus rostratus) False Whitesaddl...1.9k downloadsupdated 5 y ago
• HH.A.A.I. - Nosestripe Anemonefishby AnubiteWe are pleased to see you choose Hippocampus Aquatic Animal Import for your animal needs. Hippocampus Aquatic Animal Import brings you the newest species for your aquarium! All our animals are quarantined before they are brought into the buyers facility. We only import animals that are currently...1.9k downloadsupdated 4 y ago
• PPelagica - Polar Plunge - Shoalersby 1electron4 shoaling species for Polar Plunge Includes: -Capelin -Antarctic Silverfish -Saida Cod -Antarctic Krill1.9k downloadsupdated 7 y ago
• BBLUE - Piraputangaby Irritating FishA large, abundant fish of the Pantanal, the piraputanga (Brycon hilarii) joins your aquariums! Looking much like the larger, more agressive dorado, these fish will be a much more peaceful option when stocking your tanks.1.9k downloadsupdated 6 y ago
• FFlish Goby Packby FlishsterAdds a small selection of gobies to your game! :)1.9k downloadsupdated 8 mo ago
• KKhaydar's Bazaar - Largehead Hairtailby KhaydarAdds the Largehead Hairtail (Trichiurus lepturus) to the game as a rank 10 fish1.9k downloadsupdated 5 y ago
• BB.A.D. Laboratories Archelonby nightmare6445Here at B.A.D. Labs we are pleased to announce that our de-extinction department has successfully resurrected the Archelon. The archelon is the largest turtle known to have ever existed. It's diet mostly consists of jellyfish like other sea turtles but could have possibly used it beak to eat crus...1.9k downloadsupdated 3 y ago
• AAustralian Sealife Bonus Pack - Endangered and Vulnerableby 76561198880010479Three threatened species from the oceans of Australia for your aquariums! Includes: - Orange Roughy (Hoplostethus atlanticus) - Ornate Eagle Ray (Aetomylaeus vespertilio) - Three-Spot Seahorse (Hippocampus trimaculatus)1.9k downloadsupdated 5 y ago
• PPelagica - Zebra Loachby 1electronA loach. #TwoYearAnniversaryChallenge1.9k downloadsupdated 6 y ago
• SSea Lampreyby FlishsterAdds the Sea Lamprey to your game!1.9k downloadsupdated 3 y ago
• TTriggerfish Industries - Slug Expansion Packby 76561199033220748Adds 5 unique slugs to the game. Sorry for any inconveniences caused by the deletion for the 3 other slug packs. Credits to Khaydar for the Models and Megaterrarium as a whole1.9k downloadsupdated 6 y ago
• PPelagica - Yellowcheek Bassletby 1electronAdds the Yellowcheek Basslet (Gramma linki) to your game.1.9k downloadsupdated 6 y ago
• PPelagica - Polar Plunge - Oddballsby 1electron4 species for Polar Plunge. Included are the Bering and Starry Flounders, as well as the Bering and Leopard Wolffish.1.8k downloadsupdated 7 y ago
• PPelagica - Pupfish Collectionby 1electronThis mod adds several (well, 38) pupfish of the genus Cyprinodon. Because these are very small, many of these fish appear as more than one individual ingame. Included are the Devils Hole Pupfish, Potosi Pupfish, Blackfin Pupfish, Leon Springs Pupfish, Scale-Eating Pupfish, Bolson Pupfish, Cuatro...1.8k downloadsupdated 6 y ago
• LLouisiana's Waters 2-Offshore and Pelagicby RappyThe second in a line of mods featuring fish that can be found within the waters off the US state of Louisiana, this pack features six species that tend to congregate offshore or in the upper water column. These are: -Black jack (Caranx lugubris); unlocks at Rank 7 -Crevalle Jack (Caranx hippos);...1.8k downloadsupdated 3 y ago
• SSlender Lizardfishby Irritating FishWelcome the slender lizardfish (Saurida elongata) to your aquariums! This fish, native to the Northwestern Pacific Ocean, is ulocked at rank 8.1.8k downloadsupdated 6 y ago
• JJapanese Freshwater Life Pack Part 2by 7656119888001047930 more freshwater animals from Japan for your aquariums! This pack includes: Amur Carp (Cyrpinus rubrofuscus) Aobara-yoshinobori (Rhinogobius sp. BB) Barbel Steed (Hemibarbus labeo) Biwa Seta Clam (Corbicula sandai) Biwa-yoshinobori (Rhinogobius biwaensis) Chinese False Gudgeon (Abbottina rivula...1.8k downloadsupdated 13 mo ago
• PPelagica - Polar Plunge - Icefishby 1electron4 icefish for Polar Plunge. Featured are the Ocellated, Blackfin, Mackerel, and South Georgia Icefish.1.8k downloadsupdated 7 y ago
• GGulf Stream Aquaria - Topminnow Quartetby RappyThis mod adds four species of killifish in the genus Fundulus, all found within the United States. These are: -Golden Topminnow (Fundulus chrysotus); unlocks at Rank 4 -Mummichog (Fundulus heteroclitus); unlocks at Rank 4 -Northern Studfish (Fundulus catenatus); unlocks at Rank 9 -Waccamaw Killif...1.8k downloadsupdated 3 y ago
• TThe World's Rivers - Islandsby Irritating FishExperience the freshwaters of some select islands in this island themed pack! Contains: Fisherman Bat (Noctilio leporinus) Nene (Branta sandvicensis) Bull Shark (Carcharhinus leucas) Cuban Gar (Atractosteus tristoechus) Killarney Shad (Alosa killarnensis) Ornate Gogo Catfish (Gogo ornatus) Blue S...1.8k downloadsupdated 3 y ago
• IIndonesian Animals Packby 76561199057124724This mod adds some endemic/native aquatic animals from Indonesia, most carefully collected from Sumatra and Borneo. Contents: Patriarch Rabbit Snail (Tylomelania patriarchalis) Volcano Rasbora (Rasbora vulcanus) Indonesian Leaffish (Pristolepis grootii) Indonesian Numbfish (Narcine baliensis) Mal...1.8k downloadsupdated 5 y ago
• GGulf Stream Aquaria - Atlantic Stingrayby RappyAdds the Atlantic stingray (Hypanus sabinus), a smaller relative of the southern stingray, to your aquarium. This fish unlocks at Rank 5.1.8k downloadsupdated 3 y ago
• TTemperate Leopard Sharkby 76561198880010479Makes the Leopard Shark capable of living in both tropical and coldwater tanks.1.8k downloadsupdated 6 y ago
• YYeetus Collections - Freshwater Angelfish Expansion Packby 76561199033220748Adds 3 new Freshwater Angelfish Varieties to the game. Now compatible with Breeding Expanded!.1.8k downloadsupdated 6 y ago
• BBLUE - Sucker Duoby Irritating FishA mostly North American group of fish, the suckers are quite the diverse group! Have two enter your aquariums in this pack: Tahoe Sucker (Catostomus tahoensis) Highfin Carpsucker (Carpiodes velifer)1.8k downloadsupdated 5 y ago
• PPelagica - Dwarf Pufferby 1electronObviously requires the FF DLC. Adds the Dwarf Puffer (Carinotetraodon travancoricus) to your game.1.8k downloadsupdated 5 y ago
• BBLUE - Alewifeby Irritating FishInvite the small North American anadromous herring, the Alewife (Alosa pseudoharengus), to your aquariums! An invader of the Great Lakes, this fish can be used to show your guests invasive species, or simply be used in an Atlantic shoaler display.1.8k downloadsupdated 5 y ago
• AAE - Barb Packby 76561198393615013This introduces 4 new Barb species to be put in your aquariums! This pack includes: - Odessa Barb (Puntius padamya) - Snyder's Barb (Puntius snyderi) - Clown Barb (Puntius everetti) - Snakeskin Barb (Puntius rhombocellatus) Hope you enjoy, stay safe and stay chill!1.8k downloadsupdated 5 y ago
• MMarbled Grouperby MjmannellaAdds a new grouper from the Gulf of Mexico to your aquariums!1.7k downloadsupdated 3 y ago
• GGulf Stream Aquaria - African Eel-Blennyby RappyAdds the African eel-blenny (Haliophis guttatus), a congrogadine dottyback, to your aquarium. This fish unlocks at Rank 5.1.7k downloadsupdated 3 y ago
• PPelagica - Triplefin Collectionby 1electronAdds a few triplefin blennies to your game from the genus Helcogramma. Like the pupfish, many of these will appear as multiple fish in-game due to their tiny size. This mod includes the Tropical Striped Triplefin, Maldives Triplefin, Black-Throated Triplefin, Volcano Triplefin, Hooded Triplefin,...1.7k downloadsupdated 5 y ago
• GGulf Stream Aquaria - Tiger Two-Packby RappyThe genus Gymnotus contains a number of colorful and prized knifefish species. Within this pack are two of them to call in 2022, Year of the Water Tiger: the tiger knifefish (Gymnotus tigre; unlocks at Rank 8) and false tiger knifefish (Gymnotus javari; unlocks at Rank 7).1.7k downloadsupdated 3 y ago
• BB.A.D. Laboratories Turtle Rayby nightmare6445Here at B.A.D. Labs we are continuing our research and creating exciting new hybrids. We are pleased to introduce you to the Turtle Ray. We ha combined the dna ov various ray species with the dna of various sea turtles. The resulting creature averages about the size of a manta ray with some skin...1.7k downloadsupdated 3 y ago
• BBLUE - Blue Girdled Angelfishby Irritating FishWelcome the colorful blue girdled angelfish (Pomacanthus navarchus) to your aquarium!1.7k downloadsupdated 5 y ago
• TTriggerfish Industries - Millipede Expansion Packby 76561199033220748Adds 1 Milipede to the game. More coming soon. Credits to Khaydar for the Models and Megaterrarium as a whole1.7k downloadsupdated 6 y ago
• MMelanesian Oddballsby MjmannellaThis mod adds 2 unique animals from freshwater regions of Melanesia, being the Hall's crocodile and Robert's sole. Special thanks to Khaydar and SaltbrushC for letting me use their yacare caiman and Bering flounder models for this pack!1.7k downloadsupdated 3 y ago
• CCut Fish Bundleby MjmannellaAdd 2 new species - the bloodspot squirrelfish and queen angelfish - to your aquariums. These fish were cut from the game, but are now available once again! The squirrelfish is unlocked at level 5, and the angelfish is unlocked at level 7. Freshwater Frenzy required for angelfish to breed.1.7k downloadsupdated 3 y ago

715 fish mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.