I've got a question about the breeding and hardiness of cherry shrimp. I want to know how many I woul dhave to buy to create a breeding group in a heavily planted 29 gallon. It's inhabitants are 1 beta, 6 juvie pearl gouramis, 1 platy, 2 borelli cichlids, 2 dwarf cockatoo cichlids and 2 bristlenoses. The plants in the tank are anubias, java fern, amazon sword, willow moss and two types of viny/ floating plants. I realize some shrimp (juvies) as well as young will be food for the fish, so how many would i need for a self sustaining colony in the tank. or would my other tank (20 gallon) containing 13 cardinals, a small pair of kribs(not very aggressive), 1 beta, 1 glass catfish, 1 paradise gourami be a better fit. I ask because at the stores in my area the shrimp are about $5 each and are brilliant red, or 0.75 from ppl online however the are mainly clear with only red dots, and I dont want to spend a huge amount to only send the shrimp to the dinner table.