Vermiculite

[michael kahn]

My lab uses light expanded clay aggegate (LECA), which looks a bit like 
cocoa puffs but wicks very nicely and lets the roots have space to grow.
 
Search the internet for a supplier near you--we get ours from ECO 
ENTERPRISES 1240 NE 175th St. Suite B Shoreline, WA 98155 1-800-426-6937 
http://www.ecogrow.com/index.cfm/page/9/home.htm Search for LECA


In article <c0dkmn$l3e$1 at mercury.rfcgr.mrc.ac.uk>, Pelkki at svsu.edu 
("Kathleen Pelkki") wrote:

>  I just discovered that the nursery we usually buy vermiculite from is
> no longer going to carry it because of the possibility that it may
> contain asbestos. I need a non-soil medium to use in our growth
> chambers... something that will not provide any nutrients in case we are
> doing a nutrient deficiency study.  We also use a self-watering system
> which requires the placement of a wick in the planting medium. Any
> ideas?  What are others using if vermiculite is no longer available?
> Thanks so much for your help! Kathy Kathleen Pelkki
> Biology Department
> Saginaw Valley State University
> University Center, Michigan 78710
> 
> ---