I have a 15g column tank in my sons room. It has 20 lbs of both live sand and rock. It came with a 12" T8 bulb and last week I added 3x12" 6watt stunner strips. I am seriously concidering adding a hob eshopps 300gph overflow box and a eshopps sump. Then I would add a skimmer and a bunch more live rock. It would bring my total water volume to around 30 gallons. And about 50 lbs of rock. My main goal is to have a few corals and I figured this would make the water more stable. I am also going to order 2x12" panaroma (19w) fixtures to mix with the stunner strips and ditch the factory T8 bulb. I am doing this because I dont have room for a bigger tank in his room right now. But eventually I will get him a 60g cube tank or something similar and I want to get it started now. Does this seem do able? Or am I completely crazy?