iPhone Screenshots


Will this fish be compatible with my tank? How do I know if my tank is overcrowded?

Avoid making common mistakes and take the guess work out of fish keeping!
My Aquarium Guide will help you create a beautiful and harmonious aquarium. My Aquarium Guide is perfect for anyone who owns an aquarium or are thinking of starting this hobby that will become a source of endless relaxation and joy.

Using My Aquarium Guide:
1. Select the size of your tank
2. Choose the types of fish and how many of each you would like to add to your tank
3. My Aquarium Guide will tell you if any of the fish are incompatible with each other
4. My Aquarium Guide will tell you if you have too many fish for your tank size
5. Print, email, or just bring the app with you when you visit your nearest pet store

+ No internet connection required
+ 100+ types of fish to choose from
+ Beautiful photos of each fish
+ Fish information such as temperament, care difficulty, size, and average cost
+ Warns you of any fish incompatibilities
+ Print or email your aquarium setup
+ Share your aquarium setup on Facebook and Twitter

What’s New

Version 1.7.1

+ Bug fixes

Ratings and Reviews

4.1 out of 5
9.3K Ratings

9.3K Ratings

Nova1996 ,

Adequate but not perfect

This app works and helps a new aquarium hobbies to out by preventing you from choosing to put non compatible species in the same tank, hopefully newbies will know this means they aren't supposed to.
However, it could be improved a lot and have more functions (like a search bar), or have more animals such as a turtle/ crayfish/ frogs/ the kind of animals that go into tanks with fish.
It's because of this apps lack of breadth that I'm giving them only 3 stars. Hopefully they improve from being a "list" only about fish to the realization that aquarium hobbyists have many other things in their tank with the fish.
It would also be nice if it took into account filtration and water changes though because someone who doesn't plan to clean wouldn't want a full tank and someone who plans to do so excessively can have a higher bioload.
Other than this, the app is nice for planning a tank.

sparklyparrots ,

Needs work

It needs to take into account that some fish, even if they're small, don't do well in small tanks. In the app, I put a molly in a 10 gallon tank and it said it should take up 2 gallons. So at least one molly + other small fish + shrimp perhaps should do nicely in a 10g? Mmm, no. In my experience, that works horribly. I had a molly, 2 platies, and a shrimp in a 10 gallon and after the initial excitement of new fish wore off, I realized that I knew deep down they weren't happy in this setup. I returned the molly to the store and got two more platies to add in her place. The four now seem to be happy as clams, and healthy too. The whole tank used to be riddled with health problems while I had the molly in there. Imagine if I'd initially added mollies to my tank according to the app's suggested ratio of 1 fish:2 gallons...

The app really needs to look at the specific needs of each fish more in depth. Some produce more waste than others. I think the app would do good to change the minimum tank size for one fish of a species to the min. tank size for the least # of fish in a school required for them to be happy. (Mollies really shouldn't be kept on their own without others of their kind, and given they're livebearers... Yikes! You're definitely gonna need more than 10 gallons.)

Stop-Zombie Time ,

Good for New Aquarist, 3.5/5

Definitely has some good info when it comes to basic compatibility and schooling fish (it’ll add a warning in the corner if you have fewer than the ideal number). It is a bit limited if you have a more advanced setup though, especially when it comes to risky compatibility (ie large fish with small schooling fish can work if the tank is large and densely planted).

Be aware that all saltwater and plant life are paid additions. (Have not purchased so no comment on accuracy of info)

My main issue is the “size” info - it’s says S/M/L/etc bit doesn’t give any measurements, which is important to know. It’d also be a good idea to have a spot to input the current size of your fish, in the case of fish obtained as juveniles or fry where the tank requirements will change over time. I’d like to see more loaches and corydoras on the starter list, and more freshwater life - more snail species, other creatures that can live with fish, etc.

Someone else mentioned a search option and I agree, or at least have the fish sorted by family and/or habitat.

Note for the developers, there does not seem to be a way to delete a tank if you want to take it down.

App Privacy

The developer, Tayson Nguyen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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