i have a nova extreme t5 ho fixture with 2x54 watts...now the fixture came with a 10k bulb and a 6700k bulb for fresh water plant growth...but im moving all my plants to a bigger tank and wont be using it anymore...this is on a 55 gal...was thinking of trying my first salt tank..will 2 watts per gal with the right bulbs grow some decent coral??...also wat bulbs should i get??...leave the 10k and get a actinic??...thanks guys