I am currently using flourish complete and LED lighting in my tank. I've held off on root tabs since everything else in my tank is doing well with just the liquid ferts. Guess it's time to pick up the root tabs or start making my own osmocote capsules.
How big is your nano tank? I have one betta and two oto's plus snails in a little over 3 gallons. Tank claims to be a 4 gallon but the sand and decorations take it down some. my betta is content and doing well in the space. occasionally he flares and chases the oto's so it does give him something to do.