- Location
- yonkers ny
I dont use a orp tester . I feel as long as you do your weekly water changes you should be fine.
I just started testing orp in my tank. I am testing through my apex controller. It is at 310. Is this good or bad. My system has 200 gallons of water volume. Also my sps polyps are not extending much. Any help would be appreciated.
This is my ORP graph of my tank I took this morning. What do you guys think the sharp downward spike on Oct 31 is?
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This is my ORP graph of my tank I took this morning. What do you guys think the sharp downward spike on Oct 31 is?
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:thrash:You won the prize! Yes a water change.