I am looking to set up a planted tank in my 90 gallon tank. I currently have just the cheap gravel. I want to upgrade to either flourite or perhaps eco-complete. Are there any endoresments or recomendations out there for either. I have noticed there seems to be some debate on which is better. Also the eco-complete comes in 20lb bags and the Flourite comes in I think a 17lb bag? How many bags would I need to get a deep enough layer for good root growth? Do most people mix with gravel or use is by itself? Thanks for the info. This is my first post but all the information on this forum has already been greatly beneficial to me.