Sponge rock #4 is 1/2" to 1" in diameter. I have recently purchased a truck load and will have it available on my website by mid-February. I will also offer wholesale pricing which can be obtained by emailing me through my website as well.
Joe DiDomenico www.diatomiteusa.com _______________________________________________ the OrchidGuide Digest (OGD) [email protected] http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
