I'm upgrading to a 65g setup within the year. I'm wanting to keep my AI Sol fixture and use T5's as supplement lighting. At first I'll use one Sol fixture but may add a second later on. I'm planning on using 2 39W T5's, would that be good or should i go with 4? What bulbs would you recommend? I've always been using LEDs since I got into the hobby so I'm not up on my T5's.