Sorry for not updating so long, I was in vacation. My tank length was 21 inches; I felt it will be difficult to fix “2ft T5 ho Light” fixture in my tank. If I purchase metal halide, what should be the wattage of bulb needed for my tank?
Tank size -21”x 12”x23” inches L X W XH [25 GALLON]
Tank size -21”x 12”x23” inches L X W XH [25 GALLON]