I have three tanks going using only Seachem's Flourite. One is solely Flourite Black, the other solely Flourite Black Sand, and the last a mixture of the two. I've had great success growing all types of plants with these products. The latest trend toward speciality substrate, like ADA amazonia, is really for the benefit they provide in maintaining the tanks pH on the more acidic side <7.0. Seachem's fluorite however is inert and won't affect the chemistry of your aquarium. If you have a lot of rooted plants you probably would benefit from using the flourish tabs as well.