I've have Floramax with ludwigia, lotus, lilies, wisteria, and aponogetons.
I have no problems with it.
Flourite I think is sharper and has a thinner profile. Both Fluorite and Floramax could use some rinsing to remove cloudiness, but I didn't and just let stuff settle.
Eco is wet with beneficial bacteria, so it's best to not rinse.
A laterite layer and some root tabs help too
If you plan on carpeting, use fine sand/gravel.