Bio-pellet Reactors: whats good whats bad

[kien]

There are a bunch of people, myself included, who run GFO with bioPellets. For me the biopellets remove nitrates just fine, and do an OK job with phosphates but not stellar. I supplement the phosphate removal by running GFO as well. I use two Vertex UF-20 reactors for pellets and a TLF 150 for GFO. Two years running now.