Ok so I got a bio cube with the mh fixture and now realizing I really need to get a new bulb I'm thinking maybe its just not worth it. A new bulb is going to cost about 60 bucks and in about another 6 months another 60 bucks. I'm looking at the rapid led mixed color but I'm just concerned its not going to be enough for sps. What you guys think should I change the bulb or go with a led bulb instead??