Can you explain the physical differences between the Loiselli and Friedrichsthalii (besides coloration)? How are their head shapes different? Pictures comparing and contrasting their likenesses and differences would help as well, if you have them. The Parachromis is my favorite species of fishes. I'm trying to learn as much as I can about them by studying their habits and behavior (I have 3 of the 5- managuense, loiselli, and apparantly friedrichsthali). I'm still on the hunt for a nice female motaguense to go in with the rest of these "killers". The Dovii, obviously, will not be kept with these others. I'll get a huge tank sometime in the future for a pair (I'm looking at a used 350 soon, the guy wants $1,000).
Thanks very much in advance.