In my tank "Short Narrow Leaf" is also bigger than a Small Leaf.
I have:
- about 0,5W/L light,
- GH 9, KH7, ph 6,5,
- Co2 from pressure bottle,
- fertilizers - Bloom&Grow + Seachem Fluorish Iron + liquid carbon.
This piece of small leaf grow near light about 15 cm from the lamps.