I was going to go with a sa/ca mix...then a P. bass mix...then settled on these because the wife liked them the most and I could truly fill it with a ton of fish with tons of action since I was shooting for a show tank look. I can let them grow full size and still have a little deco in there too. The metallic color on the africans are better suoited for the MH lights. Most non fish people think its saltwater and are almost shocked when I tell them no.