I have a single 4 inch kenyi female cichlid living a 40 gallon tank. Now, I'm considering getting a non- mbuna tank mate and I've settled synodontis catfish. Based on what I've heard, despite their pugnacious temperament, mbuna cichlids are actually able to co-exist peacefully with catfish that belong to the synodontis genus. Would anyone be able to verify the authenticity of that assertion for me? Would a synodontis be able to get along with kenyi? Also, what is the common name under which these catfish are sold? Thanks in advance.