ModsMegaquarium
Megaquarium mods
A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
1,287 mods, most downloaded first · newest update 12 Oct 2026
Animals888Fish715scenery138tanks108Sharks84Other animals79Extinct and Fantasy64Crustaceans57paints55Mammals46Others45Bugs/Invertebrates42plants39birds36Reptiles35Gameplay34Clams and corals30Rocks29Guest Facilities24Cetaceans21Custom Maps17Accessories16Shark16animal13Modpack11tutorial10
- Ruby Longfin Fairy Wrasseby grosseberthaadd the ruby longfin fairy wrasse to you'r game .2.8k downloadsupdated 6 y ago
- North Sea Pack - Abyss Aquaticsby 76561198880010479NOTE: This mod is now outdated. Please use the newer European Sealife Pack for remakes of all animals in this pack, as well as several new species. Adds the Brill, Common Dab, European Anchovy, Common Smoothhound, Greater Pipefish and Common Skate to your game! This mod is my submission for the N...2.8k downloadsupdated 6 y ago
- Starter Trio Pack 2by grosseberthaAdd 3 species for the start of your game, all are auto-unlock at lvl 1, the Darkfin Chromis (Chromis atripes), the Spotted Sharpnose Puffer (Canthigaster solandri) and the Yellow Watchman Goby (Cryptocentrus cinctus).2.8k downloadsupdated 5 y ago
- hawkfish mini packby FlishsterAdds the flame hawkfish and the longnose hawkfish to your game. :)2.8k downloadsupdated 8 mo ago
- Oddball Trio Pack 1by grosseberthaAdd 3 new oddball to your game, the John Dory (Zeus faber), the Butterfish (Oddax pullus) and the Splendid Toadfish (Sanopus splendidus)2.8k downloadsupdated 5 y ago
- Gourami Packby FlishsterAdds a selection of gouramis to your game!2.8k downloadsupdated 8 mo ago
- Armored Fish Duo Packby grosseberthaAdd 2 new species for your game, the Pineapple Fish (Cleidopus gloriamaris) and the Pallid Sturgeon (Scaphirhynchus albus).2.8k downloadsupdated 5 y ago
- Hogfish Trio Pack 2by grosseberthaAdd 3 Hogfish to your game, the Palebar Hogfish (Bodianus atrolumbus), the Splitlevel Hogfish (Bodianus mesothorax) and the Lyretail Hogfish (Bodianus anthioides).2.8k downloadsupdated 6 y ago
- Pleco Trio Pack 2by grosseberthaAdd 3 plecos to your game, the Alenquer Tiger Pleco L397 (Panaqolus sp.), the Mango Pleco L047 (Baryancistrus chrysolomus) and the Striped Bulldog Pleco L444 (Chaetostoma formosae) .2.8k downloadsupdated 5 y ago
- One Tile Scenery - FFby SardineFreshwater Frenzy DLC's scenery (plants/rocks/caves/bogwoods) modded to take up just one tile, allowing more dense and complex aquascaping. Mar 2026 update: flat slate and slate cave now compatible with mountable plants2.8k downloadsupdated 8 mo ago
- Striped Grouperby grosseberthaI am happy to propose you the striped grouper (epinephelus latifasciatus).2.8k downloadsupdated 6 y ago
- Pacific Shoalers Packby grosseberthaAdd 3 species from the Pacific, the Pacific Creolfish (Paranthias colonus), the Harlequin Sweetlips (Plectorhinchus chaetodonoides) and the Atka Mackerel (Pleurogrammus monopterygius).2.8k downloadsupdated 5 y ago
- Coral Paintby BosjesmanThis mod will add a new paint, the coral paint!2.8k downloadsupdated 7 y ago
- Sirenian Packby 76561198880010479Adds the Dugong, West African Manatee and Amazonian Manatee to your game! Make no mistake, these are no mermaids! Credit goes to Timmiegun for the model and texture for the Amazonian Manatee, and the texture for the Dugong and West African Manatee.2.8k downloadsupdated 6 y ago
- Soapfish Trio Pack 1by grosseberthaAdd 3 Soapfish to your game, the Dr Seuss Soapfish ((Belonoperca pylei), the Goldenstriped Soapfish (Grammistes sexlineatus) and the Gold Ribbon Soapfish (Aulacocephalus temminckii).2.8k downloadsupdated 6 y ago
- Macroalgae Packby UzagAdds the following speices to your game: Cuvie (Laminaria hyperborea) Dulse (Palmaria palmata) Thongweed (Himanthalia elongata) (You can make food out of all of these) #TwoYearAnniversary2.8k downloadsupdated 6 y ago
- Gulf Stream Aquaria - Leopard Catsharkby RappyAdds the leopard catshark (Poroderma pantherinum) to your game. One of several species of catshark found off the coast of South Africa, it is often exhibited in public aquariums due to its docile nature and hardiness in adapting to new surroundings, and can be found alongside the pyjama catshark...2.7k downloadsupdated 3 y ago
- Schoolmaster snapperby grosseberthaI am happy to propose you the Schoolmaster snapper.2.7k downloadsupdated 5 y ago
- Clarion Angelfishby grosseberthaAdd the Clarion Angelfish to your game, ( Holacanthus clarionensis ). This Mod add 1 species, but with breeding, and a new feature, the ontogeny with the juvenile stage. You can have only adults and don't breed them, you need only to add less than 4 species in the same tank. If you want to stay w...2.7k downloadsupdated 6 y ago
- tube worm packby FlishsterAdds two new tubeworms to your game, the feather duster worm and the christmas tree worm. :)2.7k downloadsupdated 6 y ago
- Nile Trio Packby grosseberthaAdd 3 species from the Nile, the Elephant Fish (Pollimyrus isidori), the Sénégal Minnow (Raiamas senegalensis) and the Moon Fish (Citharinus citharus).2.7k downloadsupdated 6 y ago
- Rocks Packby 76561199057124724This mod adds more type of rocks and sessile animals for your aquascaping needs. Contents: Blue Mussel (Mytilus edulis) Giant Acorn Barnacle (Balanus nubilus) and a lot of rocks.2.7k downloadsupdated 5 y ago
- Chinese Alligatorby 76561198880010479Adds the Chinese Alligator to your game!2.7k downloadsupdated 3 y ago
- Artificialis - Tetraodontiformes Collectionby Tenth ArchitectOur second clade based pack will focus on a group of ray finned fish. This collection focuses on Cenozoic members of the Tetraodontiformes, the group made up of boxfish, pufferfish, triggerfish and relatives. Each member of this pack was present in the Monte Bolca Formation of Eocene Italy. Inexp...2.7k downloadsupdated 4 y ago
- Tetra 5 Pack 1by grosseberthaAdd 5 Tetras to your game, the Lemon tetra (Hyphessobrycon pulchripinnis), the Copeland Tetra (Hyphessobrycon copelandi), the Red Blue Peru Tetra (hyphessobrycon margitae), the Green Fire Tetra (Aphyocharax rathbuni) and the Ruby Tetra (Axelrodia riesei).2.7k downloadsupdated 5 y ago
- Pelagica - Lined Surgeonfishby 1electronA lined surgeonfish, also known as the Striped Surgeon or Clown Tang. (Acanthurus lineatus). Texture by Uzag.2.7k downloadsupdated 6 y ago
- Tanganyikan Cichlid Packby FlishsterAdds a whole host of tanganyikan species to your game.2.7k downloadsupdated 8 mo ago
- Pelagica - Purple Tangby 1electronA purple tang. That's what it is. Texture by Uzag.2.7k downloadsupdated 7 y ago
- angelfish mini pack 2by FlishsterAdds the ornate angelfish and the regal angelfish to your game!2.6k downloadsupdated 8 mo ago
- angelfish mini pack 3by FlishsterAdds the Yellowbar and Blue Ring Angelfish to your game! Skins created by Uzag.2.6k downloadsupdated 8 mo ago
- Khaydar's Bazaar - Marine iguanasby KhaydarMarine Iguana based on the populations of Isla Española. Unlocks at level 10, needs beach tank. DOES NOT HAVE DEPENDENCIES. (Outside of FF) Just sub and play.2.6k downloadsupdated 5 y ago
- Khaydar's Bazaar - Walrusby Khaydar2023 remake of the walrus. Requires a large beach tank, unlocked at rank 122.6k downloadsupdated 3 y ago
- Chain Catsharkby Irritating FishAdd the adorable little chain catshark (Scyliorhinus retifer) to your game2.6k downloadsupdated 6 y ago
- Tetra 5 Pack 2by grosseberthaAdd 5 Tetras to your game, the Flame tetra (Hyphessobrycon flammeus), the Red Eye Tetra (Moenkhausia sanctaefilomenae), the Phoenix Tetra (Hemigrammus filamentosus), the Black Darter Tetra (Poecilocharax weitzmani) and the Kyburz Tetra (Pseudochalceus kyburzi).2.6k downloadsupdated 5 y ago
- Pelagica - Global Series - British Islesby 1electronThe second in Pelagica's Global Series. Take a break and head to these coldwater islands on the east side of the pond to experience these 5 species. Featured are the Rock Cook Wrasse, Spiny Starfish, Undulate Skate, Lesser Spotted Dogfish, and Shortsnouted Seahorse.2.6k downloadsupdated 7 y ago
- Conger Packby FlishsterAdds the European conger, whitespotted conger, and daggertooth pike conger to your game!2.6k downloadsupdated 8 mo ago
- Panther Grouper New Textureby grosseberthaAdd a new texture for the vanilla Panther Grouper. For brightness reasons, and these weirds "maltesers" spots, i decided to make a new texture for this grouper, hope that can help some of you too ! :) NOTE: This mod doesn't add a new fish in the game, it just replace the texture for the panther g...2.6k downloadsupdated 6 y ago
- Bubbl.E - Platyfishby 76561198451982036Bubbly Emporium (Bubbl.E) is happy to supply you with the brand new Platyfish! With 48 different hybrid variants to discover, these little fish will surely make your aquariums more lively. Despite being beginner fish, they still need good care to thrive. Thank you for your patronage. Stay bubbly!...2.6k downloadsupdated 6 y ago
- Triggerfish Packby FlishsterAdds the Assasi triggerfish, Sargassum triggerfish, and the pinktail triggerfish to your game! These fish are mean, but beautiful. Recommended (but not required!) to grab the Blowfish and Friends Pack for more triggerfish and filefish! :)2.6k downloadsupdated 8 mo ago
- Chinese Paddlefishby 76561198880010479Adds the Chinese Paddlefish (Psephurus gladius) to your game! An extinct species once found in the Yangtze and Yellow Rivers, but was declared extinct in 2019. Once abundant, water pollution, overfishing and dam construction were this species' undoing. While it was alive, the Chinese Paddlefish w...2.6k downloadsupdated 5 y ago
- Pelagica - Platies Deluxeby 1electronThis mod adds the wonderful fish known as platies, with 144 different hybrid variants, common and rare alike. Take it as a personal challenge to breed them all (but only if you actually want to and have no better use for your time).2.6k downloadsupdated 6 y ago
- Pelagica - Global Series - Sea of Japanby 1electronThe third in Pelagica's Global Series. Follow the Rising Sun and enjoy these 5 species. Featured are the Japanese Moon Jelly, Teardrop Butterflyfish, Cloudy Catshark, Tiger Puffer, and Sabre Squirrelfish2.6k downloadsupdated 7 y ago
- BLUE - New World Catfish Packby Irritating FishThe New World is home to some unique catfish species. Discover 5 of them in this pack! Channel Catfish (Ictalurus punctatus) Oil Catfish (Centromochlus perugiae) Gulper Catfish (Asterophysus batrachus) Slobbering Catfish (Brachyplatystoma platynemum) False Piraiba (Brachyplatystoma capapretum)2.6k downloadsupdated 5 y ago
- H.A.A.I. - Eschmeyer's Scorpionfishby 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...2.6k downloadsupdated 5 y ago
- Grass Packby 76561199057124724Adds some grass species (family Poaceae) to your game. Contents: Asian Rice (Oryza sativa) Salt Reedgrass (Spartina cynosuroides) Common Reed (Phragmites australis) Saltmarsh Cordgrass (Sporobolus alterniflorus)2.6k downloadsupdated 5 y ago
- Fast Staff (discontinued)by AinaBerylEDIT - Since the new random staff system, I can't target only Fitness and Memory so this mod is outdated. You should use Cheated Staff instead :) --------------------------------------------------------------------------------------- Set the staff Fitness and Memory to 10, so they move and learn...2.6k downloadsupdated 7 y ago
- BLUE - Strange Creatures, Strange Namesby Irritating FishWhen it comes to naming animals, sometimes people get creative! This pack features several creatures that are nearly as bizarre as their names: Monkeyface Prickleback (Cebidichthys violaceus) Sarcastic Fringehead (Neoclinus blanchardi) Sexy Shrimp (Thor amboinensis) Slippery Dick Wrasse (Halichoe...2.6k downloadsupdated 3 y ago
- Louisiana's Waters 1-Coral Reefsby RappyThe first in a series of mods featuring aquatic wildlife that have part of their range within the US state of Louisiana, though many are also applicable for aquarium displays in the greater Gulf of Mexico, Caribbean, and southwest Atlantic. This pack features the following thirteen animals (sixte...2.6k downloadsupdated 8 mo ago
1.3k 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.