Yes I have, but that's not saying much. I"ve got 36 watts on the tank
for 1.5ish watts per gallon. I use Flourish excel every once in a
while and dose ferts weekly. The swords are healthy and the stem
plants grow okay.

In my 55g, with plain old aquarium gravel, the plants grown like
they're on steroids. This because they also get the benefit of 3wpg
and gaseous C02.

steve