I have a 10 gallon planted tank using 20 watts lighting fixture compact flourecnet 50/50. Flourite substrate. My java ferns and moss are doing fine but my sword and anbuias narrow leaf arent doing swell. Anubias leaf tip turning yellow and sword tip and side turning transparent like losing green color. Anyone know what kind of deficiency is it? what i need to do? Please help. thx in advance.