I keep my LMB in water 72-74 deg F, although they are fine colder than that. They will also live in warmer water, but they get spastic. The pH can vary between 6.5-7.5 and if you get one, I recommend you get a fry, as they will not need to adapt to tank life really. I feed mine Omega, Cichlid Gold, krill, ghost shrimp, and the occasional feeder.