So I have my plants listed in my signature, but what I want to know is if root tabs (diy osmocote) and excel with the appropriate lighting are enough. Do I need ferts in the water column? I have some of the low light plants that look great but the swords don't want to get very tall. Oh and the hair grass looks okay but I haven't seen any new growth. I assume I've wasted my time on this since I don't have co2.