u/QuickPause529

I have a 530 gallon marine aquarium with heavy bioload as I have a good amount of fish. Tank is about 5 months old. I am having trouble controlling my phosphate and I range between .5 and .9

I've used GFO bags to no avail so I'd like to purchase a reactor. My skimmer is Reef Octopus and I'm really happy with it so was thinking of sticking with this brand. I can't tell which model to purchase for the reactor though. There is nothing on their website that helps someone select. I'd like for mine to be in the sump.

Hoping someone out there has experience with this brand. Thanks in advance.