Just recently bought 10 medium size banana plants from a local seller on ebay, some are in rough condition due to shipping, and I want to grow them to their fullest. i have a mixture of medium grain sand and gravel in my tank. How should i go about securing them onto a particular place in the tank? I want to give them optimal light, and Ive noticed no matter what i do, they end up being moved by fish into a corner, or coming out of the sand & moving around. I bury the rhizome about 1/3 into the sand. Can i thread a needle through the plant and tie it down without damaging it? Its annoying honestly.