I am looking at stocking a forty gallon tank and would like some opinions on fish choices. Only one species is fine since I know this is a small tank, I was thinking of a group of 3-6 cichlids. Some of the species I am considering are firemouths or bumble bee cichlids (that's what they are called at the pet store). I would like to be able to see some of the interesting cichlid breeding behavior. Any ideas or opinions would be appreciated. Thanks.