We do read the boards.

While we don't reply to all of the amazing suggestions everyone makes here, we do keep track of them. We are collecting ideas and 'ammunition' for the sequel that we are planning.

The thing with the fish genders is more related to having a challenging but balanced puzzle within the game. If we made it necessary to also consider the gender of the fish that you are trying to breed, it would be MUCH harder to solve the (already challenging) mystery of the 7 fish.