Oof! Like it a lot. But, I was confused a little, because I did get what are those points and where are they get from. You should add some info about the thing that points got out of your fishes, and the more you mutate them, the more points you get!
After I get how to play, it became really fun. Especially I like the moment, that fishes can use together :D
Also, at one point, you starting to get so much points, so you can radiate your fishes without pauses :( So the game becoming pointless at this point. I think you can fix it by increasing the cost of rad gun
Also it is really hard to start playing, because at start you have nothing so you have to wait really long. Maybe "initial capital" can fix it?