I have a 100gal Mix Reef Tank heavily stocked, for a while I was having Nitrate problems reaching up to 40ppm on a API tester. I use to be a heavy feeder & had 3 medium Tangs, now I just have a 5" Powder Blue Tang & 6 smaller fish. I added 2 phosphate reactors & I use deNitrate by Seachem & PhoseBan by Two lil Fishes at first I changed my media every 3 weeks until I brought it down to about 10ppm & now I change it out monthly. Since then I have been able to keep my nitrates in check keeping it at around 0ppm.:wavey:
