In everytank but my gar tank it grows like a proverbial weed. I originally got some for my planted tank and had it under twin T5's with 10k bulbs... I could barely keep it under control. I spread it out into a few of my other tanks with standard t8's and daylight bulbs. and it still grows well.
atm I just have glass tops on the gar tank, no lighting. and it neither dies 'nore grows really. But the gar seem to enjoy it. It just floats around and I've found left in a low-current area with enough light it forms a sort of floating matt.
alot less messy ime then hornwort and the other usual plants people use for free-floating. It will still clog an uptake tube if it gets the chance lol. It tends to congrigate around my sponge covered uptakes and is easy to brush off though.
and I have yet to find a fresh-water perameter it doesn't do well in. Our tanks at work are often over-run with it. from african set-ups to community type.
not sure how good a nitrate sucker it is but I rarely have nitrate issues even when I miss a minor WC here 'n there.