3-6-06
Short update.
I have my calcium reactor online after some entertainment with the cracked fitting. It appears that Ehiem changed some things on the Korallin reactors, namely, fitting sizes. This happened about 5 years ago...and no one told me.
Anyway, I figured this out after ordering a new fitting from Marine Depot. When it arrived, it didnt fit. The unions connecting it to the reactor lid were smaller than the ones it replaced. So I ahd to buy a new lid, and the other fitting, (inlet) to get my reactor online.
I've never had a calcium reactor before so I was a little worried that I'd screw this up and dump a bunch of Co2 into my tank, nuking the pH, and wiping out everything. Happily, this didnt happen.
The reactor I have is the Korallin 1502. Its filled with ARM media, and has a pH probe port in the new lid I bought. The instructions Korallin includes with their reactors are almost useless since they read like a Sear's instruction manual:
"Putting hand of first on knob of left....What the hell...????"
Fortunately, there's a very informative thread here on RC about these reactors. Oddly enough its titled...URL="http://reefcentral.com/forums/showthread.php?s=&threadid=699686&perpage=25&pagenumber=1"]Korallin Calcium Reactor[/URL].
The info there can be used to dial in almost any reactor, although it is geared primarily towards the Korallin reactors.
What I've learned from playing with my reactor for a week is this:
DON'T SKIMP ON THE NEEDLE VALVE, BUY A GOOD PRECISON ONE THE FIRST TIME. It will save you headaches and time. The one that came with my set up isnt bad, but its REALLY sensitive, one light touch will increase/decrease the Co2 bubble count radically.
Currently, after one week of being online, the reactor is running at:
10 BPM Co2
102 drops per minute effluent
Effluent DKh 30.24
internal reactor pH showing 6.5
The tank is holding steady with:
DKh 8.6
Ca 415
The reactors pH is a bit low from what I've read about ARM, but I'm not 100% sure thats the real pH. I did calibrate the probe prior to placing it in the reactor, but my understanding is that a pH that low will turn ARM into mush...and it doesnt
look like thats happening.
I have the effluent from the reactor dipping into the first compartment of my sump where my skimmer sits and the overflow feeds so there is alot of oxygenation going on there and any excess Co2 should off gas fairly easily in there.
Nick