O.K. So I have searched thru a few of the discussions and I cant seem to find much info Hygromite. I am currently using Hydroton pellets but I'm tired of chasing the ph levels and, more importantly, they clog up the 1/2" tubing on my hydro system. Hygromite has peaked my interest, sounds like the extra silica content will be beneficial too. It sounds like it comes in different sizes as well. Anyone have any feedback?