Spoke to a LFS owner who grows low maintenance plants and he said "Tabs are necessary as a stop gap until the roots take hold of the substrate. One box should be fine"
That sounds do-able. So, I ordered 5 bags of black flourite for the same price sold on M.D. Pick them up on Tuesday.
Hopefully it'll be okay for my dojos. I figure if regular pet store gravel doesn't bang up their barbels, then Flourite shouldn't either.
florite is cracked clay and is very sharp you should put sand or mix it with some gravel if you have barbel fish going over it, like corys
shows you whats in it. It has def helped with my plants in general. I dont use tabs i just use liquid/powder foods