So called moonlights smallish aquarium lighting fixtures that emit a low intensity usually blue light have been popular with reef aquarists for some time.
Blue led moonlight fish tank.
My tanks have a 2 hour blue light faze before the light goes out totaly.
Led lights can be dimmed and programmed allowing for a natural dimming at sunset and the reverse at sunrise.
Diy led moonlight fish tank mod.
I don t think i would leave it on permanent as the active fish during the day stay active as well.
Blue light allows the nocturnal fish to be seen doing what they do best when the lights go out.
Shop for led aquarium lights in fish tank aquarium lighting heating.
Nicrew classicled gen 2 aquarium light dimmable led fish tank light with 2 channel control white and blue leds high output 4 6 out of 5 stars 1 003 29 99 29.
Got 2 led bars with 30 led s on each one white the other in blue from amazon add a 12v power supply and a 2 way switch put it all together in less than a hour.
Increasingly internal timers in high end dimmable led units can be set to automatically regulate the transitions between day and night.
This is particularly good for nocturnal fish as a dim blue light can be left on the tank to simulate moonlight and allow for feeding and viewing purposes.