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Thanks for all of the ideas. Tank capacity is 47 gallons + 3 in the sump. I change about 10 gallons / month. I make RO water with a Hi S membrane. SG...
Thanks everyone. Just trying to sort it all out: 1. Could the 20% monthly water change cause the problem or would smaller ones just be less stress on...
Have a 45 gallon reef tank that's been set up for ~2 years. Metal halides and blue actinic bulbs. 90lb live rock and 2" live sand. 2 doz...
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