I haven't. But one can only assume that my levels are okay... nothing is suffering. My SPS are doing great.. and if my SPS in a 20g are doing okay, it's a fairly decent indicator that things aren't that bad. Weird, huh?
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20g BB Mixed Reef // Coralife 150w HQI // AquaC Nano // Koralia 1 & Seio 820 // Jager 200w // AC50
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