I want to upgrade my lighting from my coralife PC 260 watt fixture. I want to be able to add a clam or 2 and some sps, nothing crazy,No crazy growth or anything like that. I aquired a canopy which I want to use. Tank is a 72 bowfront. What retrofit kit do you reccomend, how much wattage. I would consider MH's but would prefer to stick to VHO 's or T5's. Please help Thanks.