i love. the fish. and the turtles. and the crabs. they make me so happy. i am considering getting another screen just so i can have this game open at all times. the graphics are gorgeous and the behaviour of fishes are realistic. i am satisfied with how realistic the simulation is in terms of water parameters as well.

i just hope that in the future they'll have shrimps and other invertebrates because they are my favourites. i think realistic breeding simulation would also be really awesome.

Excellent Sim. So much potential.

I can confidently say that this is the best aquarium simulator in the world.
Fish behavior and movement animations are fantastic. I was particularly pleased to see that the plecos/suckerfish suck themselves onto the glass once in a while! And the cory cats generally remain near the substrate layer like in real life, and the chili rasboras kind of school together... it's all just delightful. Some fish motions have room for improvement, like turtles arm animations or the discus being too bendy, but my watchful eyes are largely fooled.
The game runs super smoothly (easy max framerate and never crashed) and it's beautiful on my 4K screen.