ok, I've set up a 20 gal tank, with good filtration, aeration and nice warm water at about 75 to 85, I put a male and 3 females, the male eventually cleared a nest area at bottom, but no takers, in the mean time it kept side bumping females until 2 had bad bruises, I removed them but one die, I removed 3rd one because it started mashing that one also, so I removed both and started again. 1 male a…