So I've got some plans on doing some aquascaping in a 10 gallon over this coming summer. I plan on just using a few plants to get a grasp on things like some Java fern, either java moss or dwarf hairgrass for a carpet, and some vals. I've been doing research on a few of these plants and I've seen mentions of using some sort of fertilizer below the substrate to see the best results... But I have no idea if there's special fertilizer for this or something else. I guess I'm just wondering if using fertilizer for these plants is required and if so what kinds/brands should I consider? Thanks all.