55 reef lighting?

Hi I recently started a 55 gallon tank and want to try soft corals. I recently came across 2 36" HO dual t5's. In each fixture is a 39w 10000 daylight and a 39w actinic. I was wondering if these will work for soft corals. If it will do I need both of the fixtures and do I run both lights (daylight and actinic) at the same time? Thanks in advance!!


ps if it doesn't work for the 55 might it work for a 40(36"x13"x21")