anyone use one of these?

[moneytank]

does anyone use one of these or know someone that does. or do you have any info about these? thanks
http://www.marinedepot.com/md_viewItem.asp?idproduct=ES33502

corallife calcium reactor

[cpreefguy]

Im interested to know as well. The reviews on marine depot say that it is made of cheap plastic, and it needs a few mods to get it working well...

[Richard]

I haven't used one but the rep was here showing me one. Yes, it is made of a cheaper material but it looks like it would work alright. Although I think it looked too small to work well on a larger tank. You'd probably want to buy a dwyer flowmeter to go with it.