I love anything to do with aquariums, so there was little chance I wouldn't enjoy this game!!
The visuals are really cool — the 3D models of the fish and the way they float around are amazing. The music is nice and calming, and using the brush to move all the fish is a clever idea.
The only real critique I can think of is that it takes a bit long for the tank to fill up maybe? I took some of my patience to wait for every fishie to spawn.
But other than that — truly a nice game! I’d say this definitely has a good shot at winning.