First: Why would you put sand over expensive ADA Amazonia?
I've heard the new amazonia II muddies the water. I used to use aquarium sand/gravel over soil to keep it from muddying the water, and wondered if I could do the same with this. I also prefer the look of the sand as the top layer.
Last edited by bluestems; 09-02-2012 at 10:25 PM.
People don't cap pelletized soil products with sand, typically, because the sand will settle beneath the soil.
Mineralized Top Soil or standard organic top soil that people use works just as well as the ADA products if you plan to cap. Otherwise, ADA products are best used as the only substrate in the tank (additives of your choice not included).
I really like the look of the sand at the base of the stones, so I think what I'll end up doing is splitting the substrate with the sand in the front and in the middle of the tank, between the stones, and the aquasoil in the back towards the front at the sides.
Thanks for the help in talking me through the thought process =)