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Best Fish Tank Merger Apps & Games

218+ iOS apps & games curated and reviewed

4.4 avg rating
18 free apps & games
Updated May 2026

Looking for free fish tank merger apps and games? 18 of our 218+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Fish Tank Merger

Fishdom#1

Fishdom by PLR Worldwide Sales Limited

Match 3 & Fish Puzzle Game
Editor's Choice
🎮 Games
4.6😞(1.1M ratings)
FreeAdsIn-App Purchases
#14in Games
Fishdom screenshot 1
Fishdom screenshot 2
Fishdom screenshot 3
Fishdom screenshot 4
Fishdom screenshot 5
Fishdom screenshot 6

Create your dream aquarium in an underwater world of match-3 fun with unique gameplay, hundreds of levels, and amusing 3D fish personalities. Decorate fish tanks, play with friends, and dive into Fishdom now! Find out more on Facebook, Instagram, and Twitter.

What We Love

  • 🎨 Variety of fish and aquarium customization
  • 🕹️ Engaging and challenging gameplay
  • 🕰️ No ads disrupting gameplay
  • 🤝 Ability to join teams and help each other

Room to Improve

  • 💰 Game becomes increasingly pay-to-win at higher levels
  • 🤖 Unhelpful customer support bot
  • 🤯 Levels designed to force in-app purchases
Fish Tycoon#2

Fish Tycoon by LDW Software, LLC

Unlock the Magic Fish of Isola
Strong Contender
🎮 Games
4.3😐(1.8K ratings)
$0.99
#21in Games
Fish Tycoon screenshot 1
Fish Tycoon screenshot 2
Fish Tycoon screenshot 3
Fish Tycoon screenshot 4
Fish Tycoon screenshot 5

Create your own virtual aquarium and breed over 400 species of fish in a genetic puzzle challenge to uncover the 7 Magic Fish of Isola. Care for your fish, sell creations, and customize tanks in real time. Dive into this award-winning simulation game for just $0.99 for a limited time!

What We Love

  • 👍 Nostalgic and enjoyable game
  • 🚀 Addictive gameplay
  • 💡 Unique fish breeding mechanics

Room to Improve

  • 🐛 Frequent crashes and bugs
  • 🔍 Blurry graphics and unreadable text
  • ⏱️ Slow progression and long wait times
Picture Fish - Fish Identifier#3

Picture Fish - Fish Identifier by Next Vision Limited

Fish ID Verify by Picture
Worth Considering
📚 Education
4.4😞(5K ratings)
FreeIn-App Purchases
Picture Fish - Fish Identifier screenshot 1
Picture Fish - Fish Identifier screenshot 2
Picture Fish - Fish Identifier screenshot 3
Picture Fish - Fish Identifier screenshot 4

Identify fishes instantly with Picture Fish! Snap or upload a picture of a fish to get fast and accurate identification of over 2500 species. Join a dynamic community, access fish-keeping tips, and explore a rich database of fish information. Upgrade to Picture Fish Premium for expert answers, HD wallpapers, and an ad-free experience. Explore more at [link to app].

What We Love

  • 🚀 Quick and accurate fish identification
  • 👍 Helpful for learning about fish species
  • 💡 Useful for anglers and aquarium hobbyists
  • 🚀 Easy and fast to use

Room to Improve

  • 🐛 Inaccurate fish identification in many cases
  • 🤑 Expensive subscription model
  • 🤯 Difficult to cancel subscription

More Fish Tank Merger apps to explore

4
Aquarium Planner & Fish Guide
Aquarium Planner & Fish Guide
Aquarium Planner & Fish Guide
Tank Manager, Planner & Guide
Free

Experience the ultimate fishkeeping companion with a comprehensive aquarium guide. Easily build your ideal tank, select compatible fish, and avoid common mistakes with this intuitive tool. Dive into the world of aquariums hassle-free and create a harmonious underwater paradise today!

🔍 Reference
(14K)
5
Catchr: Fish Identifier
Catchr: Fish Identifier
Catchr: Fish Identifier
Identify fish & log catches
Free

Identify and track your catches with this user-friendly app that helps you instantly identify fish species, estimate weight and length, and categorize your catches with a subscription. Download the app and start logging your fishing memories today!

⚽ Sports
(3.7K)
6
Fish & Trip
Fish & Trip
Fish & Trip
Lead your school of fish!
Free

Discover a diverse range of recipes for preparing fish dishes from around the world, complete with step-by-step instructions and video tutorials. Whether you're a seafood enthusiast or a culinary adventurer, embark on a flavorful journey today!

🎮 Games
(8.5K)
7
FishVerify: ID & Regulations
FishVerify: ID & Regulations
FishVerify: ID & Regulations
#1 Fish Identification App
Free

FishVerify is a mobile application that helps users identify various species of fish through photographs. Simply snap a picture of the fish, and the app will provide information on the species. Never struggle to identify a fish again – download FishVerify now!

⚽ Sports
(1.9K)
8
Fishbrain - Fishing App
Fishbrain - Fishing App
Fishbrain - Fishing App
Fish Spots, Maps & Identifier
Free

Discover the best fishing spots near you, track your catches, connect with other anglers, and explore detailed maps with Fishbrain - the ultimate fishing app! Join the community today to enhance your fishing experience.

⚽ Sports
(835)
9
Fish Tycoon 2 Virtual Aquarium
Fish Tycoon 2 Virtual Aquarium
Fish Tycoon 2 Virtual Aquarium
A lovely real-time aquarium!
Free

Dive into a real-time virtual aquarium where you breed and sell fish to upgrade your tank in this fun tycoon simulator. With 400 species of fish, upgrades, decorations, and more, create your own fish empire!

🎮 Games
(3.8K)
10
Happy Fish +
Happy Fish +
Happy Fish +
Leisure fish farming
Free

"Experience the most popular fish farming game with over 3000 unique fish to collect, each with special personalities. Enjoy easy and relaxing gameplay by feeding and interacting with your fish with a single touch, all set against beautiful and customizable backgrounds."

🎮 Games
(1K)
11
Fish Farm 3 - Aquarium
Fish Farm 3 - Aquarium
Fish Farm 3 - Aquarium
Aquarium Simulator
Free

Experience a realistic aquarium world on your device with Fish Farm 3 - Aquarium Simulator. Buy, breed, and care for a variety of fish while customizing your aquariums with decorations and different environments. Enjoy features like feeding, breeding, and collecting fish rewards in this immersive 3D aquatic experience.

🎮 Games
(6.4K)
12
Fish Farm 2
Fish Farm 2
Fish Farm 2
by bitbros Inc.
Free

Create your own underwater world with Fish Farm 2! Choose from 200 vibrant 3D fish, customize aquariums with decorations, and crossbreed fish for unique hybrids. Play, feed, and interact with your fish to earn rewards and watch their realistic movements come to life. Join the underwater adventure today!

🎮 Games
(960)
13
Fish Farm 4: 3D Aquarium
Fish Farm 4: 3D Aquarium
Fish Farm 4: 3D Aquarium
Tropical Fish Aquarium Game
Free

Immerse yourself in the ultimate aquarium simulation with stunning 3D views and realistic fish behavior in a vibrant environment. Customize, breed, and dive into exciting missions across various locations. Download now to start creating your dream aquatic world!

🎮 Games
(311)
14
Fish Farm
Fish Farm
Fish Farm
by bitbros Inc.
Free

Create your own aquatic world with a variety of fish and decorations in this 3D aquarium app. Care for your fish, design stunning habitats, and enjoy the serene underwater experience on your iOS device!

🎮 Games
(382)
15
Fish Tycoon Lite
Fish Tycoon Lite
Fish Tycoon Lite
Unlock the Magic Fish of Isola
Free

Embark on a virtual fish breeding journey in a persistent world to unlock the 7 Magic Fish of Isola. Care for over 400 species, customize aquariums, and discover breeding combinations while experiencing real-time gameplay. Upgrade for unlimited play and additional features.

🎮 Games
(1.2K)
16
Fish.IO - Sushi Battle
Fish.IO - Sushi Battle
Fish.IO - Sushi Battle
Be the Fish King in aquarium
Free

Dive into the ocean world of Fish.IO - Sushi Battle where you control a baby shark and hunt for fish while avoiding sharp enemies. Upgrade blades, collect fish heads, and dominate the sea to become the ultimate Fish King in this IO game!

🎮 Games
(12K)
17
Aquarium Land - Fishbowl World
Aquarium Land - Fishbowl World
Aquarium Land - Fishbowl World
My mini ocean fish universe!
Free

Welcome to a captivating sea world fishing game where you collect and customize various fish and sea animals in your aquarium mini mart. Dive into the ocean, expand your fish tank, attract visitors, and become the ultimate fish tycoon. Rule your fish farm now!

🎮 Games
(281K)
18
Paradise - Fish Aquarium
Paradise - Fish Aquarium
Paradise - Fish Aquarium
Relaxing Ocean Aquarium
Free

Dive into Fish Paradise, a relaxing ocean aquarium app where you can design unique underwater aquariums, raise and breed beautiful fish, and discover sea creatures. Interact with friends, send gifts, and chat with other players in this immersive aquatic world. Join the community and start creating your underwater oasis today!

🎮 Games
(154)
19
Fishing App - Pro Angler
Fishing App - Pro Angler
Fishing App - Pro Angler
Fish Identifier, Spots & Maps
Free

Discover the ultimate fishing companion with detailed species guides, weekly reports, marine weather, and 60,000 GPS fishing spots worldwide. From beginner to pro, access angling secrets and tips from experienced captains. Join us in promoting and preserving the sport of fishing!

⚽ Sports
(6)
20
Fish Fingers! 3D Interactive Aquarium
Fish Fingers! 3D Interactive Aquarium
Fish Fingers! 3D Interactive Aquarium
by Useless Creations Pty Ltd
$0.99

Experience a realistic 3D interactive aquarium on your iOS device with lifelike fish that swim in all directions and react to your touch. Customize your aquarium with new fish downloads and background images for a personalized underwater experience. Interact with the fish by feeding them and tilting your device to see the water move. Explore more at www.UselessiPhoneStuff.com.

🎬 Entertainment
(29)

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