I have been doing some research and like the look of mbuna cichlids. I'm new to freshwater and don't know much about cichlids so any advice or just pointing me to some good reading material is really helpful. Could I put some in my 29 once it is finished cycling? How many could live happy and healthy in the 29 gal tank? Its a 29 gal with a large wet/dry sump and about 25lbs of rock. Thanks for any input. Enrique