differance between corse and fine ca rx media

[spscrackhead]

whats the differance between corse and fine calcium reactor media?

[szwab]

not much some brands need lower ph to dissolve. I prefer the coarser media as IMO there is more even dissolution and less potential for channeling.

[spscrackhead]

what brand disloves under the highest ph?

[szwab]

can't say for certain (nothing solid to back it up)but IME it seemed as though crushed coral and ARM media dissolve faster than others.

[BrokeColoReefer]

I think ARM has the highest avertised rate of something like 7.4 i run my korralin media at 6.5..

[spscrackhead]

what is a good ph to start with in a ca rx?

[BrokeColoReefer]

depends on the media, but with mine, i started my effluent around 7 and droped it untill i saw a rise in ph in the tank. THis was done with a ph controller for the reactor, and a aquacontroller for the tank so i could data log the ph. My reactor hit the sweet spot around 6.53. any lower and it would kill the ph. With the current setup, my pH is actually a few tenth's higher with the reactor running then not.