Hey guys, I had a question about my german blue rams, i have 4 in my 40 gal and i noticed something a little strange with the colouring on one of them. There's one confirmed pair and 2 that are either both males or possibly 1 of them is a female i can't tell yet as they are still juvies. The one potential female seems to be squabbling with the male thats not involved in the pair. I noticed that as they go at it he or she seems to fade in colour rapidly almost to the point where you can't see the black spot, and then all of the sudden brighten back up, is this due to stress or is there some sort of mating type ritual that could be the culprit? I'm a little worried as i haven't noticed this in either of the rams in the confirmed pair.... any insight would be appreciated thanks!!