Sand Under soil
Hello all, I've been searching for any help on having sand under soil in my tank. I can find a million posts about sand on top of soil but none for what I'm considering. I am starting a planted, community fish tank. I have had cichlids for several years now and want a change. I have a 75 gallon tank with 2 Eheim canister filters. I currently have gravel substrate but am removing that. I just bought ultum nature controsoil after doing some research on a good soil. I am thinking of putting a 1-2 inch layer of pool filter sand on the bottom and capping it with the controsoil. I'm not sure how it will look or if I should even bother. My thinking is that the sand will give a thicker layer for the plants or should I just buy another bag of controsoil? I have (2) 10 liter bags. Thanks for any help!!