Hi Everybody, I have been doing a bit of research on slow-release nutrient sources and I wonder about the use of greensand as an amendment to a MTS-type substrate.
With a Google search I found just a handful of references to the use of greensand in planted tanks. Several of these warned that if immersed in water greensand will dump all of its nutrients quickly and cause trouble.
I also searched for descriptions of use in water gardening/ponds and found nothing. I wonder if greensand might be unsuitable for this kind of application(?). Does anybody have any opinions about this?