I have added blue LED moonlights to my 135gal tank and i was wondering if they can be left on 24hrs a day? they are not very bright, and are not noticeable when the day lights in the tank are on at the same time.
LED lights will last for a terrible long time before burning out. Why would you want to leave them on tho?
Arent they for simulating moonlight? you only see that in any amount three or four nights a month...