Which calcium reactor do you use?

[whatcaneyedo]

I've owned two old down flow style Precision Marines, first the smaller size and then the larger. Both units were purchased in 2006, I have the larger one on my system and the smaller one is on a friend's tank now. The only issue I've had with them is that because the internal flow passed down through the media I've needed to use course media to keep the flow consistent. Fine media would compact and restrict the flow which required more frequent adjustment and maintenance. I think PM began to offer reverse flow reactors in late 2006 so that issue would no longer be a problem. The large unit also came standard with a pH probe holder installed in the lid where as I had to install one in the smaller unit myself.

It doesn't seem like any retailers in Canada carry PM anymore but you could probably find one in the buy/sell section of this forum.