Denitrification Media

[FragIt Dan]

I use Brightwell Aquatics XPort products (all three) in 3 separate systems with decent results. Prior to these, I dosed Ethanol (aka Vodka). I switched off Ethanol for two reasons: I was periodically having cyanobacteria issues, but mostly because I travel frequently and so couldn't maintain strict daily dosing (I have since purchased dosers). IMO, the only real advantage to the XPort products over Vinegar is lack of daily dosing. I also found the XPort NO3 and BIO both crumble rather easily and you end up with a substantial loss of product. Now that I have dosers, I think I will switch back to Carbon dosing (this time it will be Vinegar as it is reported to be less susceptible to cyano blooms) as it is much more cost effective than the BA products. I do actually like the XPort PO4 product, but it is essentially GFO but in crouton form and, according to the manufacturer, has greater phosphate uptake capacity. Personally, I would just Vodka dose.
Dan

[pinkreef]

so 15ml per 100gal per week then increas to 30ml and 45ml in the next two weeks? have i got this right?
should i remove the biopellets before trying this?
thanks for the good information

[Bill]

I tried Algae Scrubber, DSB, Vinegar, Vodka, Zeo, everything from A-Z. None worked as well as my DIY sulfur denitrator. Zero nitrates and phosphates going on 2 years now. I don't have any fancy controls on it, but you do have to make sure output keeps flowing and doesn't stop.