Iron for plants....

[Ron Sower]

I'm looking for someone's experience using laterite clay as an iron supplement in the substrate to help increase the red color in plant leaves. I'm going to get some and usually it is layered on the bottom of the tank prior to placing the main substrate over it. 

Since I'm not going to take the tanks down to do that, so I'm planning on suspending the clay dust in water, sucking it up into a large syringe, and injecting it into the substrate at the base of the plants I want to supplement.

Anyone tried this with any type of supplement or fertilizer? Any ideas?

[P4Angels]

This is what we have been using:  [size=78%]http://www.peabodysparadise.com/shop/home/193-iron-up-tabs.html[/size]

[Ron Sower]

That looks good, P4.  I got the clay coming in a trade though.
Thanks for the lead!