differbetween what is scoria used for
Oct 20, 2015 Hi Neo, I have just used scoria (Lava rock) as substrate in all my shrimp tanks on my rack. I have also been using it for many years in caninster filters. I will remove the various things like bio-balls or noodles etc and replace with scoria. It is a fantastic filter media and allows beneficial bacteria because of the amount of holes in it. Scoria can also be used as sub-floor insulation to good effect. This stone has been used as an aggregate in cement, which results in a material that is as strong as concrete, but much more insulating. The most common use for scoria is in decorative landscaping.