11-30-2008, 02:39 AM
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Throwing all of those cichlids into one tank like that is definitely a recipe for disaster. First of all, it's not a good idea to mix New World cichlids (Jack Dempseys, Texas cichlids, salvinis) with African cichlids (yellow labs and blue johannis) as they have different water chemistry requirements and usually incompatible personalities. The Dempseys, Texas, salvini and johannis are all very aggressive fish. However, the Dempseys and Texas cichlids will be considerably larger than the others so it doesn't surprise me that you're having problems like this.
Honestly, even mixing "compatible" New World cichlids is hit or miss. The next time around, I wouldn't try putting so many fish together in such a small space. A 60g is on the small side for a Dempsey or Texas, so I would stick with something that stays a bit smaller like the salvinis. A single salvini would work well in a community setup (of non-cichlids like larger tetras or any peaceful fish too big to be eaten), but if you got two and they turned out to be a pair they would likely kill anything else you put in the tank.