Originally Posted by SteveFishman
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That's pretty overkill, unless he's keeping very high light SPS
everything else is going to bleach/melt with a 150w MH
right on the top of the tank. Added replacing bulbs is pretty pricey and with that much heat he'd need a chiller which would be even more money.
if you want to be safe picking out corals that aren't SPS
and wondering if you have enough light, the 2-bulb Nova T5HO jenatron suggested would be plenty. Without shipping costs it's only about $20 more than it would be for those PCs which IMO
aren't worth it.
And a firefish would have plenty of room in a 10G, but be warned they are pretty much known jumpers