Originally Posted by houseofcards
Pretty much, dry ferts are the most economical way to go. Your buying by weight without water and yes the plants won't care if you use dry ferts with your AS/PS.
Could you give me any suggestions, as far as brands/products? And what if I don't want to disrupt the substrate? I think I've heard others just make up a bottle of their' own fertilizer dosing by mixing water with their' dried stuff... lol