I had a hard time finding straight pool filter sand. My Lowe's had pool filter sand PLUS, the plus being other chemicals and stuff I didn't want introducing to my tank.
So, I just went to the other side of the store and got the play sand. I had to rinse it really thoroughly but it settled down in just a couple of days and now I'm so glad that I took the time to switch to the sand.
yeh, my lfs sells sand that looks like it has been took off the beech. It is quite fine grained in my opinion, must be around 0.8mm. is there any type of sand that is about 1.5 - 2.0mm??