Mine doesn't appear to be all that course. I havn't actually opened the bag yet, but the grains seem fairly fine. I don't really care about the colour, since I plan on putting dwarf hairgrass in the tank. With any luck when the hair grass starts to grow and spread, it will cover all the subtrate anyway. Besides you can mix it with better looking subtrate anyways. And correct me if I am wrong, but you could make a bottom layer of flourite and have somthing nicer covering it if you wanted too, right?
Forgive me for being lazy, but what is ADA? I have never heard of that product.