Originally Posted by i-see-you
As of today I actually started looking into a GFO
reactor to have something active. I am currently running Chemipure ELITE in my filter sock, figured that was the best place for my sump/refugium setup. But am just now realizing I need to run the chemipure after my refugium because its probably stealing a lot of my macro algae's food..
No, you had it in the right place.
You want to have any chemical filtration before the biological filtration so it removes as much organics from the water as possible before it is broken down into ammonia-nitrite-nitrate. Putting it at the end of the run is counter-productive IMO
after rearranging my set-up so the water goes protein skimmer first, then the effluent from the skimmer goes through carbon/phosguard and purigen in reactors and then to a sump full of matrix and rubble rock, then on to the algae refugium, then to the return pump, I have noticed a considerable improvement.
I'm still fighting a bit of green cyano
now and then directly under my lights, but nothing major and I know it's because I feed heavy, so.....
When I checked last week, phosphate was essentially undetectable on the API test (yeah, I know, it's a useless test)
and nitrate was below 5ppm.
before reconfiguring it, I struggled to keep nitrates below 20 ppm
also are you running a protein skimmer? they make an enormous difference because it is the only method that actually removes junk completely from the water circulation rather than just "holding" it somewhere until you clean it.