[Myka]

I like the Prodibio BioDigest and BiOptim but I find they are only useful to get from LNS to ULNS. They aren't as powerful as daily-dosed carbon products.

Also, you'll need a different phosphate kit for ULNS. Hanna ULR HI736 is good but you need to know a few tricks to get accurate readings. I've heard good things about the Red Sea Pro Phosphate too and apparently it doesn't require any tricks, but haven't used it myself yet. Soon though...