Originally Posted by Greenphantom
Ok so I did it I went and bought 50 lbs of black sand and I washed it thoroughly and it seems to be clumping and floating is this normal? Also how long should I wait to turn the filters on
Well, what kind of clumping and floating? Like, clumping after you've emptied the bucket, or the sand is clumping when water is in it? If it is after you've emptied the bucket, that's what happens to me, that's fine. And as for the floating, when I thought my sand was clean, I would fill it up and then see if the majority of the grains of sand that were floating would settle out in about 2 minutes. If they did, Then I knew the sand was very close if not clean, if it didn't settle out, then it probably wasn't sand, it was dirt and I had to keep washing. And you want to turn on the filter when absolutely all of the sand is settled. Some people say this can take as much as 1-2 days, although sometimes a few hours do the trick. You just really want it to be well settled so you don't get sand in your filter.