I have a spiderplant that I pinched off the momma plant last November. It has gown quite a bit since then. I recently aquired a new spiderplant of the same kind, and it is alot more bushy and green. My old one is much paler with softer leaves, and is pretty lanky. How can I encourage it to be bushier and greener, beacause next to the new one which is about the same size, it looks awfully unhealthy. I feed it every 3 weeks. Should I feed it more often? I couldn't use the method of rooting it by staking it to soil, because I got it from my library. Is this why it's not doing so well? The leaf tips are a bit brown too, but I know this is common in spider plants.