- Joined
- Nov 16, 2019
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- 178
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I have changed my water 50 times and my nitrates are still 40 parts per million no matter what I do. Lfs tested and confirmed my test is accurate. 75 gal tank (actually holds 60 gals with rock in). Running purigen, charcoal & zeolite, and marine cubes( balls). Vaccum sand then water change, nitrates stY exactly the same. Tanks 7 months old, originally cycled using raw shrimp. I'm ready to pull my hair out. All corals and fish look great except for montiporas and acros, only things I cant keep alive. What do I do?