michael toft;1844499; said:The general tecnique is the mixing of various sands of known particle size that are fused together with glass at a temprature that sinters ( roasts to join the particles rather than melts the glass) which allows us to achieve a product that is always of a consistant porosity, if viewed under magnification, a good magnyfying glass is sufficient, Biohome is like a pile of snowballs each particle having its own surface area it is unlike other sinterd glass products which look like a ceramic sponge, Its the same product we sell to everyone and there is a large degree of finding how it works best for you in a paticular set up.All our tests,surface area,porosity,chemical analasys etc were carried out by the British Ceramic Research Association who are a recognised body.If anyone wants a sample piece to look at just send a address....
I'm going to pick up some sintered glass or ceramic bio-media soon, i may see if i can get some samples of a couple different products (Matrix, hydor, DrsFostersmith ceramic and glass, efhisubstrat, biohome) and see which one i like best. Or maybe i'll get a liter of all of them and run some simple tests to see which one works best for me.