The actinic's are part of the blue/purple light spectrum, which does hit deep water. Has for corals I'm still learning, but I do know that most corals need more than just the blue/purple spectrum. I would still run some 10,000k T5's as well. Also most soft corals can, and will thrive in nutrient-rich waters with less intense light. And another note, if you don't have a lot of coralline algae it will bloom big time under darker lighting (eg: 80% actinic).
Stay Salty,