I am new to reef tanks and I'm about to purchase a 65g that is 36Lx18Wx24H. I initially planned to purchase 2 AI Hydras but learned that they are about to be discontinued. I'm now back to considering a Radion XR30W G3 with the wide angle lens. I was wondering if anyone has used this light with or without a wide angle TIR on a 65g. Can I get away with one light or do I need 2?