Atoll,
I just purchased 2 Oxydator A based on reading your posts in the earlier parts of the thread. After fast forwarding through the thread it seems you changed your setup a bit. My tank is roughly 120-130 gallons operating volume with a pretty light bio load at the moment (4 chromis, Pygmy angle, yellow watchman, fat clownfish, 4-5 rbta and a mixed reef). I was originally thinking of 2 A’s with 2 catalyst each at 6% for starters. Will this be ok or is 2 A’s not needed?
Also I submitted a request to join your Facebook group, thanks