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Dissolved Oxygen Issues?

April 26, 2017Dissolved oxygen

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Dissolved Oxygen Issues?

1 Answer

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Posted

Hello crew, Ill get down to it, I know you have a ton of mail to answer. My corals look ill. Withered and not opening. Problem is, I have never had a cleaner tank. 75 gallon with custom sump and refugium. Lighting is 2 x 175 watt MH with 2 x 48 inch actinics. Tank has been up for 7 months, and corals have been in for 3 months. 3 weeks ago, they began to look sickly. I change 5 gallons of water every Sunday and the make up water is with RO/DI. I have kept tanks for 10 years, but I have a whole new setup this time, (new house) and I have never had MH lightning before. The tank did reach levels of 86 degrees when it got hot here, but I have managed to control it with a fan and have purchased a chiller. The temperatures here have toned down a bit and the tank has been a comfortable 76 to 79 for 2 weeks. No change in the appearance of the corals.