This guy is upsetting the tank?

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The 21 fish in this tank have been together for a few years now. They seem to get along now that I have them. The driftwood wall full of holes I drilled in it and rocks are in the middle and allow the fish 4 sides to be in and caves for each fish. The blue one has settled down again in the tank now that the female is out in the tank. I only have one 4 ft lamp in the tank.
 
Sure it's not a blue ahli? Had one and he was the worst fish ever... Always chased everyone and tried to take out eyes and locked jaws with other fish. And also, most aggression problems can be from too bright of tank lights or too strong of current. Rift lakes are pretty dark.. I know my front only comes out when I have the actinic light on dimly.



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Ahli's aren't collected or seen in the aquarium trade. The name is used a lot but is normally s. Freyeri or hybrids of.
 
That pic in that last is not a S. fryeri (electric blue fryeri) imo, or at least not a pure one. Sounds obvious, but electric blue fryeri are more of an 'electric' blue, brighter, more metallic looking, and generally a sleeker profile (link) and females, juveniles, and males in some moods have blotches like this. As mentioned, fryeri were commonly called ahli in the past until they were classified as a different fish but, as often happens, not all of the hobby has caught up and some still use the older name. Also, as mentioned by james99, true ahli aren't really seen in the hobby, for one thing they're relatively drab compared to fryeri and other popular haps.

Sometimes they're ok, but not at all unusual for fryeri to be aggressive ime, especially with peacocks and similar sized haps, but then yours doesn't look like a fryeri to me, at least not purely bred. If that's its peak color my honest guess would be a hybrid, but it could also be something else I'm less familiar with.
 
How about this guy. I was able to take a sorta clear one of it. Thanks, Mark
http://photos.imageevent.com/willy/cichlidfish/large/DSCN0692.JPG

I know someone else said it might be a hybrid. It might be, but maybe not.
It could be a subdominate male, maybe a Protemelus species? Hard to tell, I'm not really an expert, but often times in a Malawi community, some of the males will not color up to their max potential because they are intimidated by other males in the tank.
I got a male Red Empress from someone, he gave it to me because it was being terrified by its tank mates.
I put him in my tank, no one bothered him, but the poor guy was so traumatized from the other tank, he never colored up .. always kept subdominate coloration.
 
Sometimes people feed juvis color enhanced feed to make them color up. When that happens, some females color up as well. Then when the feed stops, the color fade.

Beware of tankful of 2-3 inch haps all colored up.


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I can see this is going to be hard to ID my Cichlids in the tank. The only thing I can do is take better pictures. I need to figure how to post pictures that show up instead of linking them to the post? I also have a hard time typing on this site? My keyboard leaves letters off only here??? I have to keep going back and adding them?
 
I just went through the pics, this fish is most definitely an S. fryeri.

http://photos.imageevent.com/willy/cichlidfish/large/DSCN0725.JPG

All in all it looks like a tough mix of fish, mbuna, haps, peacocks, and a couple of tropheus as well. Good luck.



Sometimes people feed juvis color enhanced feed to make them color up. When that happens, some females color up as well. Then when the feed stops, the color fade.

Beware of tankful of 2-3 inch haps all colored up.

What you are describing is caused by hormones added to the water, it has nothing to do with food. African cichlids raised in this manner originate from Asia, where the use of hormones is common place. The problem is many of the large commercial wholesale vendors in North America source their African cichlids (as well as many other species) from Asia, so hormoned fish are rather common. Color sells.
 
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