Everyone I've talked to also had their crop pared down to two. It seems that Sega's version of natural selection isn't quite as selective as Mother Nature's. Raise the temperature to 20.0 and the Seamen immediately start bitching. Same with the oxygen level, which you're also responsible for maintaining. Of course, you probably will have better things to do.
Seaman can be a drag at times.
I tired of this activity quickly. The graphics and sound did not help, either. The tank is very, very plain. There are a few rocks, your Seamen, and, uhhhh, that's it. Overall Seaman is a game you may like.