Glitches and suggestions

I keep getting weird glitches and its driving me crazy. But other than that its a great game. Although I have one suggestion. When I am moving the fish around I wish I could take all the fish out of the tanks so I could put the right fish with the fish they like. So if you could consider making this possible that would be awesome.

Lzobrist67 about Fish with Attitude, v3.5.3