Upgraded tank from 55 to 220 and lights from t8 to metal halide 250 w x3 14k polyps at first liked the move but after few months they've turned white any help on what to do or not to do would be appreciated
They're at the bottom of tank in middle and I usually don't have the middle light on, could I use a smaller rock, since they're on a fairly large rock, to shade them??
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and lights from t8 to metal halide 250 w x3 14k polyps at first liked the move but after few months they've turned white any help on what to do or not to do would be appreciated
