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View Full Version : what is this buildup?


sduke66
04/25/2014, 01:42 PM
What is this buildup and how do I stop it. I scrap it off every night and its back the next day. I'm toping off with fully saturated calc and dosing 15 ml of reef fusion through BSR dosers. I'm using salinity salt. Thanks in advance

sduke66
04/25/2014, 01:43 PM
Another pic