Laterite Plugs & Home Made Laterite(?)


For a couple of years I was using Laterite plugs (Aquarium 
Products, I believe) with what I considered great sucess.  Since 
they are no longer available, I'm wondering what everyone out 
there is using to feed the roots of aquarium plants.

One a slightly different tack, the earth in this part of the 
country contains a lot of red clay.  I'm wondering how (much) 
this differs from Laterite and if it would be benificial to my
plants.  Thinking about making up some slurries and trying to 
dry them in some kind of tubes.  Could then saw the dried out 
clay to form plugs.  Comments/Thoughts?

Thanks in advance.

Ron Belliveau                  "I have fishes, therefore,
fishman at cybernetics_net                  I am!"