I'm not sure if this has been suggested yet, but many screensavers/ winamp visualizers have preference sliders for effects. Something like this would be neat in the settings area where you can choose your preferences of certain fish to appear during random mode. One side can be "never", the opposite end of the slider would be "always". Actually, this would negate the need for a "random" setting - the program would assume everything is random until a certain fish is set to "always" and would scale the frequency a fish is chosen according to the setting on the slider.

I love this screen saver. For years, I've been wishing that the guys (AnimaTek & Maxis) who did el-Fish in the 90's would update their program - this is as close as I have seen to what that should be.

Thanks Mr. Sachs,
Lindsey