Group Buy for GFO/Edmonton

[KevinK]

I have had this GFO send form Germany, as most of the GFO avaleble, one way ore the other has a link to Germany. and used it all the time,

it has a mass of 600 - 650 grams/L as most GFO's

the thing to remember is that you can beter use less more often, than a hole bunch at once.

reason for this is that it absorbs best the first 2 weeks, after that bacteria start to colonise on the GFO, making it more a bio filter.

this is also the down side with the ROWA and other hi-absorption GFO's (thy are in general 1000 Grams+ a 1000 ml.

also thy remove best in there first 2 weeks (thy absorb in that time more than the 600-650 gr GFO, however there preformance will go down the same as the cheaper 600-650 gramm GFO.

overall you can remove phosphate with both type's of GFO, however if there is not much to absorb, why use a product that is overkill, and would not preform better ( you can drive a bike, ore a car, if i'm not alowdto go faster than 20 Km/H why use the car that can go 160 km/h)