I have a tank with flourite substrate and I want to cap it with Azoo Plant Grower, but I have been told that the smaller grains of the Azoo substrate will over time end up at the bottom of the tank while the bigger grains of the Flourite will rise to the top.
Anyone experience this? Am I setting myself up for failure if I want the azoo on top?
I have used Fluorite before and never capped it. Why do you feel this is necessary ? The problem I have with the whole idea of capping is that you are more than likely going to move plants around at some point. When you pull up a rooted plant you will be amazed at how extensive the root system can be. In other words, you are defiantly going to disturb the substrate layers. Its hard not to do this when you are just vacuuming the tank during a water change.