[Warnberg]

There are lots of reactors out there to choose from. My Schuran Jetstream 1 Calcium Reactor is supposed to be able to handle up to a 800 gallon tank. I would recommend you buy something that would handle your calcium load when your tank is fully stocked, give yourself some wiggle room as well.. plan ahead..

Not to get off the subject but I just went and looked at the price on the reactor I have... ouch, it really went up...