Hello I just set up a 150 2 weeks ago using water and filtration from my now empty 125. I used new silk plants I got from the bay and they will not stand up straight and float!! I keep hopeing they will stand up after awhile. But it looks like they are not ever going to. I siliconed them to the bottom of the aquarium before setting up as my catfish always knock my plants down. So I hope eventually they will float. Any advice or similar experience? . Thanks