Calcium reactors?

[DJ88]

Pro's,

Never dose addatives again.
Awesome growth on hard corals.

Con's

May drop the tank pH slightly.

A great investment. I use one on my 33 and get awesome growth on all my hard corals. All I ever do to my tank is a water change every sunday, feed the tank with DT's and refill my auto top off. Oh and sit and enjoy.

If you can get one. Do it. Even better make one yourself. If you have access to the equipment they aren't hard to make.

I am sure others will add more.. can't think right now.. lol