From what I have read, I really don't think that would be "very"
beneficial.......................


actually this is exactly what GARF does to make their 'grunge and it is very
beneficial.

you have to take into account the quality of the LR that you crush. if its
high quality rock with lots of life, you will have many coralline spores,
pod eggs and all other forms of life that come from the 'grunge' made by
pulverizing LR. IME what GARF has to offer is one of the best "activator"
kits for your sand bed.


kc