I started using filtered water and crabs to eat it all gone. I think it was because I was using tap water plus I cut down my lighting all gone that's what I did I didn't want to put chemicals in tank didn't want to mess up stable live stock. I'm newbie also but was into it yrs ago but things have changed . I try to go natural with what I do.
if youre in the bronx, jump on the iron horse to manhattan! the best store down there I've found so far is on w37 st b/w 10th & 11th ave.. Im in westchester but work in the city so if Im not over there I goto my lfs in New Canaan, CT.