Tank has Hygrophila Pinnatifida, pearlweed, floaters, Ludwigia Repens, Rotala Vietnam, Hydrocotyle Japan, S. Repens, Christmas moss, Hornwort, dwarf hairgrass, and Rotala Bonsai. The tank is a 20 gallon long and I am dosing seachem potassium and will be adding in osmocote root tabs. Right now I have a tetra LED light and hood that has 7 watts. The plants are growing okay and get 1.5x or 2x bigger per week depending on the plant. I was wondering if my current light is good enough for the plants I have. The light I want to get is a vivagrow 30 inch but it is 35 dollars, but Im not sure it’s worth the money.