I currently have just under 2 bags of ADA AS under the 8 bags of Flourite Dark and from time to time I do notice some being pulled up when I move plants. I thought about going to straight sand like the NBAT standards require.
There are many specifics that the NBAT require, but do not look good also nor grow plants well. Some things can be corrected right before the judges come over that day, eg low nutrients. Sediment, not so much, get what looks good to you.
Sand is natural yes, but so is clay rice paddy soil which is what ADA AS is.
You will find more plants there, than in plain sand in natural systems.
Last edited by plantbrain; 01-18-2013 at 10:03 PM.