We need to know what type of corals you are planning on. This will determine your lighting needs. Softies and fish only tanks can do fine with PC or T5 lighting but the SPS and LPS would do better with MH lighting. You already mentioned MH lighting and as a general rule of thumb I believe it's one per two feet. The type of corals you keep will determine the wattage you will need. I would be curious to know if anyone prefers magnetic or electronic ballasts. Oh yeah! Welcome to RAG!
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