i want to buy calcium reactor for my 55 gallon reef tank. i found this add, K2R calcium reactor, is this a good product?
i am a new reef keeper, pls tell me more about calcium reactor. what happen if the calcium is over the limit?
For such a samll tank I don't think a Cal reactor is a good bet. You could mess up you PH quick with that little tank, just use kalkwasser in your top off water cheaper and less expensive. If you live in NY invest your money in an AC unit or 1/6HP chiller