OK, Great Thank you! I just wanted to make sure they wouldn't hurt the fish, being indoors. They look good, and actually have some new growth after being in there two weeks. I am just having trouble with my PH being too high, and I didn't know if they would contribute to it.I have never been able to keep hyacinth over the winter indoors. It does great for me outside but not so much inside (although I don't have grow lights) It's definitely worth a try though, the light just may be the trick. If you notice they start to wilt and die just make sure to get them out of the tank so they don't pollute the water.
And don't forget to let us know if it works