cmbaker82 Posted January 16 Report Share Posted January 16 So i have had some serious nitrate issue. I have never had this tank stable, I set it up july of 2019. But over the last year or so I have had some major neglect issues not doing frequent enough water changes and was just doing topoffs for a long period of time. In any case nitrates got extremely high. 55 gallon tank with canister filter. Lots of rocks and sand so actual volume is less. Over the course of a few weeks I've been doing frequent water changes. 10 gallons at a time. I think I changed out about 50 gallons and got nitrates down to between 80 and 160ppm. Yes I know now that is extremely high. The color was between those readings on an api test kit. Closer to the 80ppm. Ran chemiclean through it at the advice of the reef shop (removed gfo and carbon) . After 48 hours measures nitrate again and it was above 160ppm according to the api test kit. Changed out 25 gallons of water at once. Replaced gfo and carbon. And tested nitrates again. Api test read between 20 and 40ppm. Also purchased a hanna instruments colorimeter nitrate tester and the water tested at 28.7ppm which was inline with the api test kits. 29 hours later I tested the water again and nitrates are 32.5. So it went up 3.8 in just over a day. Tank occupants include 1 damsel, 2 clown fish, 1 turbo snail, and one unidentified hermit crab. There was once a sandsifter starfish as well but haven't seen him since he was put in at initial setup. No idea if it's dead or alive. I'm concerned with the level the nitrates are rising. At the current rate if it continues nitrates will be back up to about 50 in a week. And I would have to do 50% water changes weekly to maintain it. Canister filter consists of a few different sponge filters of different coarseness, bio balls, filter floss, carbon, and gfo. Also have a IceCap 50 PRO Hang On Back Turf Scrubber. Quote Link to comment Share on other sites More sharing options...
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