Oh is it that like big white foam thing i see strapped to the ones they sell for crazy money online?

I dont have a pre-filter... Ive been having to clean the dust and such off of the outside often though. Maybe I should find some of that material... Hmmm.

Do you know what it is called and where I can get it?
GetThisOrDie Reviewed by GetThisOrDie on . Blue Mystic grow log... Whats up... So finally got my strawberry male done and gone with pollen in the freezer. My Blue Mystic beans cracked in less than 6 hours so I am pumped to see what they can do. Now this will be my 2nd attempt at hydro. First was my strawberry male that did great. Will be using two 5 gallon DWC buckets with Fox Farms nutes. Rockwool plugs in hydroton, 3" netpots, and a UFO style LED inside my homebox tent. Hopefully some people with a hydro green thumb can keep an eye on these Rating: 5