biopellets- who has had luck with them

[Lampshade]

I've been running them for a while on my new tank, about 4 months. I really like them, I have started to get HA though, which doesn't make sense since nitrate and phosphate are 0 (Better than my eyesight anyways, i need to get a hanna). Corals love it though, I'm not using any other additives and i have amazing growth. My valida's grown 2" in 2 months, and i have a chuck of base that was on a rock from 2 months ago that's grown many 2" arms, still trying to decide what it is, some type of acro though. Color seems to be ok in corals, i think that's more of a lighting issue than anything for me. Polyp extention is great, Day/Night they're always out. My LPS are all loving it, my hammer coral's grown more in the past 4 months that all of last year in my old tank. Zoa's are all showing great color at almost any light level, i have some over halfway up in my tank uner 250W 10K XM's, others hidden in shade.

I don't run carbon at all usually, but i recently threw a sock full in my sump to see if it'd help the HA. I have a mix of LPS/SPS/Softies which should be a bio war zone, but they seem to do well with just the pellets.