My wife and I have a 20g regular. We have been adding plants slowly over the last 3 weeks. We have 2 Narrow leaf Ludwigia, 1 Green Cabomba and 1 big patch of hair grass. The plan is to add more plants over time. I add Florish Excel every other day and Iron once a week. My lighting is the standard light that came with the tank. If I switch to a standards T5( not a LED, non High power or Double Bulb) would it do anything for my plants?