Could you give us the full rundown?
How long has your tank been running?
Amount of Live Rock and Sand (in lbs)?
Inhabitants?
Filtration? (be specific, brand names etc)
Lighting? (be specific, brand names etc)
Are you testing your levels? If so, Which ones and what are they?
Are you dosing anything?

I know I asked alot of questions, but we need to know as much as possible!
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