Probably an African type. Those rift valley lakes have some pretty tough water quality. Personally I've never seen a brown-coloured cichlid, then again there are DOZENS of species.
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drdiver1952:I'm going to have to keep an eye out in Travis for alien cichlids. We have the same alkaline water and our minimum temperature has to be about the same temp.
archman:Travis pH is nowhere near to that of Blue Lagoon. It's just a hair to the left of 7.0. As for alien cichlids, every once in a while I hear reports about Tilapia. Carp-types, freshwater drum, crappies, and oversized rio grande perch are often confused with exotics. One diver told me once that the lake was full of Jack Dempseys... he'd mistaken all the rio grande's for 'em. Those rock bass are a little weird too.
Jester:Maybe we could all come over and go diving in your aquarium? Waddaya think? Huh? Huh?
drdiver1952:Didn't quite get that. pH of Blue Lagoon is a little below 7.0?