Deep Sand Beds by Ron Shimeck[/url]]Making a sand bed is almost too easy. The most important part of the sand bed is, not surprisingly, the sand. While earlier I referred to "mud" and now I refer to "sand," I am not discussing two different materials. There is no scientific definition of "mud," however, those of us befuddled folks who spend part of our life working with marine sediments have a naming scale for the parts of the continuum of particles ranging from the very big ("boulders" = particles over 25.6 cm, about 10 inches, diameter) to the very small ("clay" = particles less than 0.004 mm, about 0.00016 inches). Nowhere in this scale is there a mention of that most desirable of substances, "mud." Generally, what a sediment-studying scientist would refer to as fine or very fine sands with smidgen of silt, most normal folks call mud. These are sediments whose particles generally range from about 1/16th mm (0.063mm) to about 1/8th mm (0.125 mm).
but i like ALOT of flow !! no dead spots for detrius to settle behind the rocks or on the sand !! i have never vacuumed my sand nor will i !!
