Just started my new 28 gal. tank. I have 5 Serpae Tetra's, I was thinking of adding 2 Pictus's, Some places say they are good bottom of the tank fish some say they eat everything. I do believe neons or anything that small wouldn't be anything but a snack. The Serpa's at about 2 inch's should be OK I think. Any suggestions on fish I could have with the cat's? Would platyes be a no no. Trying to find something for the top area.