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Old 02/17/2018, 09:25 PM   #4456
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Join Date: Dec 2015
Location: Nebraska/Missouri
Posts: 772
I believe I have ostreopsis dinos. They are primarily on the sand bed but I've lost two acropora. I started running carbon and vacuumed the sand every night. Po3 was 10 and Po4 was .1 They kept coming back every day for about a week. I bought a UV Sterilizer and it had an immediate impact. It didn't get rid of the problem but slowed it down so I only have to siphon about every third day. Not sure where to go from here but I might try adjusting the flow rate on the UV sterilizer then give it some time to see where the tank goes.

72x24x16 115 gallon under construction

Current Tank Info: 40 gallon reef
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