<a href=showthread.php?s=&postid=7372776#post7372776 target=_blank>Originally posted</a> by marcrothschild
Actually the coarse Koralth is much finer than the Schuran media. I was using the coarse koralith for quite some time in my reeftek reactor...its great stuff. I am now using a schuran jetstream 1, and the media is like the size of baby carrots that you can buy in a bag pre washed. It is not only larger, but the shape is cylindrical, most pieces are 1-2" long. Customaquatic.com sells it.
HTH