 Re: Lighting
I would definstely say that an upgrade is needed. Eventhough watts is not a measure of light intensity, a rule of thumb is about 4 or 5 watts per gallon. Since your tank is relatively shallow, MH aren't "necessary". I think more wattage is, however. Truthfully, 220 still may be a bit low, but you can offset this by placing animals requiring high light closer to the top.
Hope this helps,
Aaron
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55 Gallon Attemped Reef - 20 Gallon Sump - 250 Watt MH - True Perc, Yellow Tang, Purple Chromis, Snails, Hermits, Sally Lightfoot, Green BTA, Colt, Xenia, Flower Pot, Green Star Polups, Assorted Mushrooms, Maxima Clam, Still Hooked... | 
