Hi,
Thanks for your interest in Foz Down. The way I use Foz Down in my acro grow out system is to drip it into the overflow and let it settle out in the sump. What settles out is so fine that it is not visible to the human eye among other detritus etc.
For stubborn algae problems it can be added directly to the tank.
Now that I use Foz Down I don't need Rowaphos or GFO. :-)
Cheers,
Tim
|