I use brs pellets but I switched from the brs reactor to a next reef reactor. The improvement was remarkable. For 8 + weeks the pellets did nothing because every day I had to shack the brs reactor. When I switched it took 1 week and all my algae was gone. I also use brightwell mb7 & amino acids.
I am running biopellets on my new rimless reef and also ran them on my biocube. I was having nitrate issues with my biocube and the biopellets helped me resolve that issue. Be sure you are seeding the biopellets though with MB7 or something else. When you start seeding your biopellets you will notice your skimmer start to pull really nasty stuff. You will defiantly notice a difference once you start seeding in your skimmate. I have been really pleased with my biopellets and know a bunch of people running them with great success.
what are all your params for those running them:
cal, alk & po4 & nitrates if you know
aka lal im having the oppisite problem. my corals are very deep colored and my water is constantly high in nitrate and phos is .08ppm , the nitrate keeps crawling to 40 every week, i only feed my tank 4 times weekly