my ph swings from 7.8 at night to 8.29 in the day and all the corals and fish are fine. I think if the swings are more than 5 it cant be good but still not severe. I am sure lots of people on here have the same swings....
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Always looking for the next best coral...
90g starphire cube/400mhRadium20k/2 XHO/2x27w UV/2x39w T5/ 3 Trulumen led strips
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