I use Flourish as well as root tabs in my tank, but no matter what I do the plants will do very well for a short time after pruning, but before long the leaves go transparent and eventually begin to die. I'm trying to keep my lighting purchase under $100 and I think my ludwidgias were recommended 4WPG. So I think I would need about 200 Watts, and I prefer dim blue lights at night if there is something that has this option in my price range. I'm hoping I can find something to suit my needs and help my plants do well. Also not sure if it matters but there are cichlids in the tank too.