Thanks LilyPadI put the small cutting of pothos in the tank when I first planted it and it's just now starting to put out a new leaf. Like you the ones I have on my desks or throught the house grow a new leaf every other day or so, so I'm not sure why it grows so much slower in this environment. After looking at the tank more I think that my main issue is the lack of other colors besides green, I ususally like to mix colors since IMO it gives it a little more of a natural look (if not done in excess).