Ok, I am just starting out my planted tank...the website I went to (Aquariumplants.com) stated that the plants I purchased are "low light"... I need to know if the lighting I have is sufficient (T8 florecsent 15w) is this alright??? The plants I purchased are: four leaf clover (marsilea qudrifolia), four leaf clover (dwarf) and java fern....btw its a 20gal.... 
