one of our planted tanks is under dim lighting due to his regular light becoming electrically unsafe, and the wisteria and primrose in there seem to be doing just fine. i swear, those two plants can handle just about any kind of situation.
beyond that, if you want a dim-light murky effect in your tank, have you considered a bright light that's simply directed away from viewing, so the plants get high amounts of lighting but it looks dimmer to the viewer?
So remember, when you're feeling very small and insecure,
How amazingly unlikely is your birth,
And pray that there's intelligent life somewhere up in space,
'Cause there's bugger-all down here on Earth.
Loki/Grendel/Gail/Beowulf/Camilla/River/Bathory/Arwen/Lafayette/Deb/Jack Skellington (soon)