I love the look of VHO actinics but they have a relatively short lifespan - a 75 gallon soft coral tank with 1 10k, 1 50/50 and 2 VHO actinics is gorgeous (what I used to run on my old 75g years ago). I like T5s assuming the bulb life is as stated 1year +. Currently I spend close to 400 bucks a year replacing my DE 250 watt bulbs x 4.