Hey what's going on bro name is Jay. I was told that you may be using a sulfur nitrate reactor. I have a 280g tank that I've been fighting with the nitrates. Currently I'm doing 100g water changes a week which makes a dent in my time and wallet. Can you give me some feed back on your experience with this reactor. You can text, call or reply via MR which ever works best for you. My number is 646-402-2099 thanks