I was around the LA area and found this nice LFS and they had a 50% of sale i walked in an saw something called a leather. It had something that looks like finger polyps. The guys told me all it needs is calcium but did not look very convincing. Is there anything else it needs like iron or calcium. Would Purple Up be a enough supplment??? ill take some pics and post them. So far my metalic star polyps i have had for 2 and a half months are doing great and i really dont put anything in for them but this is a leather so any tips for these???