Water Chemistry

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I have a 30 gallon tank with 20 gallon sump. Total water volume about 30 full gallons because of rock and sand. I have SMR-1 with pellets and my Nitrates are still 30+ after a good month or more on pellets. Nitrite and Amonia is 0 not worried about PO4 because this is a FOWLR tank.

DO I maybe need to add more pellets?

WC are 5 gallons every week like clock work

Craig

Ok, so here's my problem if you want to call it that. About 3 months ago I decided to try a 3g a day water change on my 400g system. Around 8 weeks the SPS started to grow and color up nicely. Over the last 2 weeks or so my ORA Tri-color has went from Cream/Purple/ with green polyps to a REALLY light cream color, not bleach white but no purple and no green polyps. It started out Brown/Purple with green polyps.

My tests are showing 0's across the board, 450 ca and 9 DKH. Can it ...

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