This is a good read, and also works fantastic at growing plants in aquariums
http://www.aquaticplantcentral.com/...-mineralized-soil-substrate-aaron-talbot.html
Regards, Orlando
Thanks a lot, Orlando ( ....in Gainesville!). I suspect that they washed and washed that soil mostly because of some lingering 'no-no's' from the time, when most of us were frightening our mothers after having fun in some puddles of water.
Atavism of a sorts, you know...
And yes, I've red all about that, but my red clay here, under a couple feet of 'sugar sand', is as clean as it can be and I speculate that with montmorillonite (Turface), sand and small gravel, it should work out for me. After all, Turface is used on golf courses since early '70ties, so why not in aquariums....
So, being an optimist, I'm saying - 'we will se'
Encantado. EdwardN.