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I have a 90 gallon aquarium sumpless , no skimmer, just a canister filter. The fish are mostly demsels and some cromis. Maybe 20 fish . I’m feeding flake food . They seam happy. But this is also a SPS tank and I like my nutrients low . And they are low . Nitrates are usually 12-16 ppm and phosphate is usually between.040-.060 depending on how much I feed . I’m thinking about changing food because the montipora ain’t so great . The acropora are happy. Frogspawn and hammers are happy to. I’m thinking about things I can’t measure for like the food maybe has some type of phosphate in it that I can’t measure ( montipora turn brown, then die slowly) . Aim I the first to think about this . I know about inorganic and organic phosphates and I can only test for one , only pros. can test for the other. I’m thinking of changing food that is low in phosphate.
anyone got a food idea.
anyone got a food idea.