Alright,so what I'm really liking here is the african butterfly fish and the leopard ctenomopa.I've heard of people keeping ropefish in 30 gallons for life,though I wouldn't try it if it's not worth it or cruel.I've had buffaloheads before,cool fish,but mine never came out of the cave besides feeding time.And would congo tetras even work in a 30 gallon?Because if so,I would like to include them or tiger barbs as my schooling fish in the tank.And I'm actually really liking exodons,how many would work in a 30 gal?