I really enjoyed playing your game, I completed all the objectives and bought most of the fish. I only noticed one minor visual bug, in the coral reef tank all the fish sprites appeared to be swimming backwards. I also didn't quite understand how to effect the quality stat, eventually I just noticed it went up when i cleaned the tanks and since that costs nothing and can be done anytime, even when the cleanliness is at 100%, I just kept doing it over and over to top out "quality".
On a different note, I found this game through your Kickstarter, where your account shows you're based near St. Louis, MO. I help run a social group called STLGameDev, where we have a community of local indie developers that to network and help support each other's projects. If you're interested you're welcome to check us out at stlgame.dev