Nevermind about the glue. I just found some aquarium glue. Apparently home depot carries them? Weird huh??? As for the plants I just wanted to add a natural flare. I just wanted to go with plants native to new jersey. So Iam going for ferns, moss, grasses, and these plants that look like cabbages. :P I dont know. Or as you said I may just research some more and find tropical plants?