I've heard that you'd need 1 fixture for every 2 feet. Meaning you'd need two for a standard 55 g long tank. but that's just the word on the street. I'm still trying to figure the LED thing out. Lol
If I could afford another light I'd get another! This does the job, but just barely. Any bigger of a tank and you'd need 2. The specs say the coverage of this light is 6ft. But that's cutting it. Maybe you'd be fine with one over a 55 cube or something
Bummer!!!! Sorry to hear about your wrasse bro. Screen too kit from bulk reef supply with a roll of quarter inch screen. Or you can just order the screen and get the parts from Home Depot or lowes.