Randy Holmes-Farley
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My Tank Thread
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I have always used a dosing pump. calcium reactors are only for calcium and really does not help with alk. In a sps dominated tank alk is key and sps us more alk and mag are used I noticed that cal is used up but not that much. dosing pumps are the best way to go and testing 2x a week is key , once you notice a drop in alk make adjustments asap. aslo alk affect cal , in your alk drops its will take you cal reading along with it . always ajust alk first and then in 24h rest cal it will always return back to its normal reading. dosing pumps are key for sps tank , most people with cal reactors still have dosing pumps for alk and mag. The more stable your tank is the faster growth you will get....
No offense, but that is absolutely untrue regarding a reactor. Depending on how low you run the ph, the alk is higher the lower you run it.
I do agree with everything else stated however.