Diatomaceous Earth as a seed starting medium

[RayR]

Originally Posted by Calcat36

Hello RayR! I was finally able to locate a bag (.33lbs/14,97kg) feels like 50 lbs to me of Moltan Oil Absorbent for $7. Way more than I need, but if it works I will put it all to good use. It doesn't specifically list what it is other than #7133 and "natural earth product."

Am I on the right trail? Thanks!

That's the wrong one, it's not DE. Oil Absorbent is their Montmorillonite clay, which I already tried is too acidic for seed starting. If you got that #7133 at Autozone, they also carry Ultrasorb which is part# 8818, 100% Diatomaceous Earth, 15lb bag, that's the one you want.