Ca test kit

[Whiskey]

I just got a CA test kit and my level came out to 390 PPM is this a good level to maintain?? I have 1 greenspawn a rock of button polyps and some feather dusters.

Thanks,
Whiskey

[Jimbo]

its not bad, but not great either.. 400-450 is ideal for a reeftank, but for the sessile inverts you have, they are not as calcium needy as sps and lps species.

[cyork]

Most generally keep it between 400 and 450 so you're in pretty good shape :)

With that light a "load" your okay. With SPS and Clams I would bring it up at least 50 ppm. Mine usually stays at 480-500 ppm in my SPS/Clam tank.