Calcium reactors?
I have to agree with everything that Darren said. Best part (besides awesome sps growth) is no more dosing of buffers and calcium additives. I was doing that every day before, now I just refill my top-off a couple times a week, plus regular maintenance. Oh ya, and feed the fishies.
I made my reactor myself and it seems to be doing a great job of maintaining my alk and calcium levels. PH does not fluctuate much for me either, 8.1 in the morning, 8.3 in the afternoon.
All in all they are a great investment if you plan to keep sps or clams or both.
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