Mods / tanks

• CCircular Tankby BosjesmanThis mod adds a circular tank and a custom kelp plant that fits the tank really nice. Credits: Thanks to ToxoHP for making the custom giant kelp that fits really nice in this tank and in other big tanks!14.9k downloadsupdated 7 y ago
• DDeep Cylinder Tankby BosjesmanThis mod adds a deep circular tank.14.4k downloadsupdated 7 y ago
• CCylinder Kreisel Tankby BosjesmanThis mods adds a small circular tank which has the kreisler effect so jellyfish can survive in it, you can put other fish in this tank too ofcourse. It will also have 2 custom made pieces of scenery that fit this tank really well.12.7k downloadsupdated 7 y ago
• MMore Mega Tanks (discontinued)by AinaBerylAdds three mega tanks: wall, corner and obsesver.12.5k downloadsupdated 7 y ago
• FFloor Tankby BosjesmanThis mod adds the floor tank. Your guests and staff are able to walk over this aquarium! How cool is that? This tank is great to cover a big open area.12.3k downloadsupdated 7 y ago
• MMore Deep Tanks (discontinued)by AinaBerylAdds three deep tanks: wall, corner and obsesver.11.8k downloadsupdated 7 y ago
• NNorthern Plunge Packby FlishsterAdds 30 new freshwater species from the colder regions of the world, as well as some scenery, three campaign levels, and more! Species Included: -Pumpkinseed -Blackfin Pearlfish -Whitetail Shiner -Weather Loach -Northern Hogsucker -White Crappie -Signal Crayfish -Olympic Mudminnow -European Bitte...11.2k downloadsupdated 8 mo ago
• PPodium Tankby HarryLMMThis mod adds the Podium Tank to your game, a very small tank for displaying 1 to 2 small fish. It is unlocked at Level 1.10.8k downloadsupdated 7 y ago
• DDrop Off Tank Packby BosjesmanDrop off tank pack, this pack concludes a drop off tank and 3 custom scenery items custom made for this tank! Note: Do not use this scenery in other tanks as they will look weird in other tanks, just use them in the drop off tank and they will look good :)10.2k downloadsupdated 7 y ago
• MMega_L_Tunnel_Tankby stlnegril9This mod has an L-shaped Tunnel in the normal Mega Tank9.9k downloadsupdated 6 y ago
• MMegaterrarium-Baseby KhaydarMegaTerrarium is a fan made expansion, this mod brings the foundations for terrarium use, such as code, equipment and scenery. Mods that add terrestrial animals among many others require this mod to work. This mod DOES NOT add animals at all. Hungry for more Terrarium Content? Check out Flishter'...9.0k downloadsupdated 18 mo ago
• MMega_T_TunnelTankby stlnegril9This mod has an T-shaped Tunnel in the normal Mega Tank8.0k downloadsupdated 6 y ago
• RRaised Tanksby FlishsterAdds a raised version of the wall tank to your game! Perfect for small fish and bottom dwellers.7.7k downloadsupdated 6 y ago
• SSmall Deep Tanksby BosjesmanThis mod will add 3 new tanks, a small deep wall tank, a small deep corner tank and a small deep observer tank. These tanks are great to keep small fish.7.7k downloadsupdated 7 y ago
• SSmall Cylinder Tankby BosjesmanThis mod will add a new tank, the small cylinder tank! The medium kelp will add 20 plant points, this is alot! I did this so you are able to keep some plant lovers in this tank too.7.3k downloadsupdated 4 y ago
• MMega_Tunnel_Tankby stlnegril9This mod has a Tunnel in the normal Mega Tank7.2k downloadsupdated 6 y ago
• BBeach Tanks Expandedby Tenth ArchitectA collection of larger beach tanks, they come in four widths, six depths, two types of viewing window arrangements for a total of 48 individual tanks. Categorized as Mega for twenty tiles wide, Grand for sixteen tiles wide, Huge for twelve tiles wide and Large for eight tiles wide, they are each...7.0k downloadsupdated 5 y ago
• HH.A.A.I. - Amazing Mangrovesby AnubiteContinue the adventure through one of the most important ecosystems on our planet. The mangrove is known to be the hatchery for many species of fish, but it also blooms with many other types of animals. From birds, to invertebrates, to mammals. Amazing Mangroves will be adding a variety of new an...6.8k downloadsupdated 4 y ago
• DDeep Beach Tank Collectionby Tenth ArchitectA collection of deeper variants of the Beach Tanks, that will unlock at the same level as the respective beach tanks. The land can be decorated with scenery objects. Only includes the island size.6.8k downloadsupdated 6 y ago
• 33x3 Tanksby BosjesmanThis mod will add 2 3x3 tanks!6.3k downloadsupdated 7 y ago
• SShallow Beach Tank Collectionby Tenth ArchitectA collection of shallow variants of the Beach Tanks, these were designed with small animals, wading birds and shore birds in mind. The land can be decorated with scenery objects. Please note that while larger fish can be placed in these tanks, they will clip through the floor and often experience...6.0k downloadsupdated 6 y ago
• IInside Corner Tanksby MarnitAdds three new inside corner tanks. (Lagoon, Wall, Deep Wall)5.8k downloadsupdated 7 y ago
• IIntersection Tanksby BosjesmanThis mod will add 2 intersection tunnel tanks!5.5k downloadsupdated 7 y ago
• KKhaydar's Bazaar - Breeding tankby KhaydarAdds both an hatchery for fish eggs at rank 7 as well as a growth tank at rank 8. Perfect for immersion ! Perfect for backstage, these tanks are ugly (guests will complain) and will not allow for guests to see what's inside. Comes with a special filter that can only be used for those tanks.5.5k downloadsupdated 8 mo ago
• RRounder Kriesel Tankby stlnegril9This mod is for testing the ModWorkshop Support. It is a rounder Kriesel Tank.5.5k downloadsupdated 7 y ago
• SShallow Touch Poolby Tenth ArchitectThis mod adds a pair shallow touch pool tanks, designed with small animals in mind, that can be unlocked at rank 4. Please note that while larger fish can be placed in these tanks, they will clip through the floor and often experience the position reset Megaquarium performs when an animal is dete...5.2k downloadsupdated 5 y ago
• SSouthern Splashby 76561199056670115Southern Splash add 35 new animals to your game! additional tanks, scenery, gift shop and paint for a better overall experience. -Animal list- Black-barred surgeonfish (Acanthurus polyzona) Melon butterflyfish (Chaetodon trifasciatus) Tille trevally (Caranx tille) Kingfish (Centroberyx lineatus)...5.0k downloadsupdated 4 y ago
• 220Diameter_Round_Tankby stlnegril9This mod adds a 20 diameter (fixed) round tank. Nice as a centerpiece tank in an Aquarium4.9k downloadsupdated 4 y ago
• 22 Level 1 Deep Tank Packby stlnegril9This mod adds 2 stackable tanks - one on top of the other. They are 1 deep with a wall-theme background and sides, from 2 to 4 tiles long. Meant for displaying smaller fish and crustaceans along a hallway or walkway.4.5k downloadsupdated 7 y ago
• 11 Wide x15 Stretch Tankby stlnegril9This mod adds a simple 1 wide tank adjustable from 2 to 15 tiles long. Can use lights. Useful for filling in long narrow unused spaces, but limited tank capacity. Thanks to Bosjesman and Toxo who probably contributed to creation of this tank at some point.4.4k downloadsupdated 7 y ago
• RRipple Tanks Packby 76561198842575853This pack features innovative inside round corners. Inside corner tank is found in Deep Wall category, everything else is in Ripple category. Thanks to rickreptile for huge help with modeling.4.3k downloadsupdated 8 mo ago
• KKhaydar's bazaar - Pacific Shoresby KhaydarNo your eyes aren't misleading you, today the bazaar has released a pack featuring semi-aquatic animals. You may be wondering how this is even possible with the limitations of the game, well .....it's magic. And like every good magic trick it's all illusion. The real animals are swimming while th...4.0k downloadsupdated 7 y ago
• RRounded Tunnel Tankby 1electronIt's pretty much exactly what it sounds like.3.8k downloadsupdated 5 y ago
• SSunken Deep Tanks Rebuiltby stlnegril9This mod revives some unpublished game models as Sunken Deep Tanks Rebuilt. Includes Sunken versions of Deep Wall, Deep Corner, Deep Observer, and Deep Outcrop Tanks. Note the models are in the existing game but are not currently used. The tanks are the same as existing tanks, but with sunken bot...3.8k downloadsupdated 7 y ago
• KKhaydar's Bazaar - Monterey Bay Aquarium Packby KhaydarDisclaimer: This mod and author have no ties with the Monterey bay Aquarium. This is a fan work inspired by the aquarium and falls under fair use. Contains 4 tanks and an autofeeder. - Small wall Kreisel and Wall Kreisel These tanks are not multi-size, cannot have scenery (like real life kreisels...3.8k downloadsupdated 6 y ago
• 11 Wide x15 Stretch Tank - Deepby stlnegril9This mod adds a simple DEEP 1 wide tank adjustable from 2 to 15 tiles long. Can use lights. Useful for filling in long narrow unused spaces, but limited tank capacity. Thanks to Bosjesman and Toxo who probably contributed to creation of this tank at some point.3.8k downloadsupdated 7 y ago
• RRaised Beach Tanksby Tenth ArchitectAdds a raised beach tank to the game! Perfect for small fish and bottom dwellers. Based off of Flishster's Raised Tanks.3.7k downloadsupdated 6 y ago
• DDonut Viewing PlatformTankby stlnegril9This mod adds bosjesman's Donut Tank idea to a Platform Feeding tank.3.7k downloadsupdated 6 y ago
• DDiagonal Tanks Packby 76561198842575853Adds 4 tanks with diagonal corners3.7k downloadsupdated 8 mo ago
• DDonut Tunnel Tankby BosjesmanA giant donut tunnel tank, great for a center piece tank that leads into more directions. This mods comes with 2 tanks. A giant tunnel tank and a 3x3 square tank, place the 3x3 tank in the tunnel tank to create an amazing center piece tank. The reason that you need 2 tanks is so you can put small...3.6k downloadsupdated 6 y ago
• KKhaydar's bazaar - Horseshoe tankby KhaydarMost of the fish released by us, are large, strong swimmer, that need a rounded tank. There's nothing wrong with them, however we realized that the game lacks a tank adapted for them; sure there's the Chicago tank, but it's unlocked at level 10! Until that you only have a Belfast and small tunnel...3.6k downloadsupdated 7 y ago
• SStand-Up Tankby 1electronA tank that allows guests to see ground-dwelling animals at closer to their eye level. Unlike Flishster's Raised Tank, this is a freestanding tank that makes for a nice display in the middle of a small room.3.4k downloadsupdated 5 y ago
• BBigger Beach Tanks Packby stlnegril9This mod adds 4 Beach Tanks with higher land capacity for more/larger reptiles in your aquarium. The Beach Tanks are: -U Lagoon Beach Tank. -Lake View Beach Tank. -Peninsula Beach Tank. -Central Lake Beach Tank.3.4k downloadsupdated 6 y ago
• CColumn Tanks packby 76561198842575853Collection of vertical tanks that have very high volume and constrained floor space. Good for shoalers or active swimmers with low scenery dependance. Column height allows guests to view them from one tile away! Will also have your employees to climb a lot. Credits to rickreptile for fixed tank_w...3.3k downloadsupdated 8 mo ago
• BB.A.D. Laboratories Reinforced Tankby nightmare6445Here at B.A.D. Labs we discovered that we were going to need larger and more durable tanks than those currently available. We have designed our new reinforced tank to hold even the largest of creatures to ensure the safety of your staff, customer, and the animals. Our tank capacity ranges from 5,...3.2k downloadsupdated 7 y ago
• TTall Sunken Tanks Rebuiltby stlnegril9This mod revives some unpublished game models as Tall Sunken Tanks Rebuilt. Includes tall version of Lagoon, U, Chicago, Chicago-Internal, and Mega Tanks. Note the models are in the existing game but are not currently used. The tanks are deeper and much, much taller than existing tanks. Will requ...3.2k downloadsupdated 7 y ago
• DDonut Land Tankby stlnegril9This mod adds Land Area in the middle of Donut Shaped Platform Feeding tank. Guests get extra prestige for the great views and central island. Has Land capacity for animals requiring it. Can serve as a connection to 4 areas of your aquarium.3.2k downloadsupdated 6 y ago
• DDonut Viewing Platform Tank - 3 Wideby stlnegril9This mod adds bosjesman's Donut Tank idea to a 3-wide Platform Feeding tank.3.1k downloadsupdated 6 y ago

108 tanks 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.