Here is a photo of my 75G aquarium. I have been using Compact Florescent bulbs. 96W with a Current dual daylight 7,600K and 10,000 along with two Custom SeaLife 65W 8800K ColorQuest (another 130W). I am over due on replacing my bulbs and would be looking at about $70 plus shipping to get what I have been using. I try to replace the bulbs about ever 1.5 to 2 years. I think I am well over two years on this batch. Are LED fixtures worth it? From what I have been looking at, I think I would have to buy two fixtures to get the coverage and lighting I want to grow my plants. With that, I would be spending around $400 that would last me about 5-10 years. What are you using?