Thanks to both of you for your advice.
It's really not a question of which corals I want to keep. The issue is how much money I have to spend on lighting (not enough for 2 MH
fixtures), which will restrict my choices of corals. Since the price of one MH
fixture and the 4 bulb PC
are close, I was just wondering if I could get away with one MH
, but it sounds like the ends of the tank will be too dark?
Since I am just starting out with corals, I prefer the more durable species that don't require large amounts of lighting. But with a 260W PC
for 75 gallons, that's 3.5 watts per gallon. Is that enough for low to moderate light corals?