PH in Ca reactor

Tom R · #1 12-09-2007, 09:59 PM

I am controlling my PH inside the reactor between 6.5 and6.75 usually 6.60.

ARM media indicate on the package that for best results maintain PH between 6.50 and 6.75.

I find that there is a noticeable depletion of media when the PH is at 6.50.

Tom R

untamed · #2 12-10-2007, 01:07 AM

Hmm...based on this conversation, I've just changed the pH of my reactor from 6.55 to 6.60. (I've been running a bit high on the Ca/Alk lately, so this is a way of turning the reactor "down" just a bit).

I have the same reactor....PM622. Mine has a 2nd stage added to it.

mark · #3 12-10-2007, 02:18 AM

Got a DIY but 6.5-6.7 of the effluent keeps things steady.

You might have it covered already but I was also finding hard to keep the Ca up. Clued into fact that the water I was using for changes was way low on the Ca and Mg. Once started ensuring my change water was up, no problem with reactor maintaining.

steve fedyk · #4 12-10-2007, 04:04 AM

The next inprovment to be added on to the tank is a 2nd stage Ca reactor like what Untame is running. A go DIY project for me. Where is a good place to get acrylic 4" to 6" OD 1/4 thick and about 18" to 24" long. I think that would make great size for an effluent chamber.

untamed · #5 12-10-2007, 06:27 AM

I think TomR just DIY'd a 2nd stage on his Ca Reactor by using a Phosban reactor. Nice, affordable alternative. It will be tough to find acrylic tube affordably in a short length.

These guys sell 6" stock...
http://www.protein-skimmer.com/shopp...p=itemlist.asp