Selling a small breeding colony of shell dweller cichlids, hard to count but at least 2 males, 3 females and whatever babies are hiding, I counted 12 but that changes often. Plus about 30 shells and whatever else you need like heaters, sand and tanks. They usually sell for $20 a fish retail and can breed rather explosively. Very aggressive and territorial, they will attack anything that comes within an inch of their shell, and will rarely leave that territory even to eat. Pairs well with most live bearers and hardy fish. Had these for 5 years but am moving on. $60