hygger Small Aquarium LED Light for 0.5-3 Gallon Tanks

The hygger HG075 is a 12 watt full spectrum light sized for 0.5 to 3 gallon tanks that are 7 to 11 inches long. Two 1.6-inch tall extendable metal brackets rest on the tank rim. hygger sells this light in 7 sizes, so check your tank length before ordering.

LEDs

It has three rows of 2835 LEDs and two rows of 5054 WRGB LEDs, for a stated 314 lumens. For a tank this small, that is plenty for low and medium light plants and shrimp tanks, and you will likely run it below full power.

24/7 day-night mode

The 24/7 mode steps through sunrise, daylight, sunset and night on its own. You set on and off times in 2-hour increments, giving anywhere from 2 to 24 hours of light. It is a simple way to run a natural cycle without a separate timer.

Timer mode

If you prefer a fixed look, pick a color and brightness, then choose a 6, 10 or 12 hour period. The light saves that setting and repeats it each day, and it remembers your last brightness after a power cut.

Colors and dimming

There are 7 fixed single colors plus a cycling mode, and the full spectrum setting. Brightness steps through 10%, 25%, 50%, 75% and 100%. On a pico tank, 25% to 50% is usually a sensible start.

Tips for tiny tanks

• Tiny volumes swing fast, so keep the photoperiod moderate to avoid algae.
• Keep the fixture clear of condensation and splashing.
• Use a matching small heater such as the hygger submersible heater range sized to the volume.

Measure the outside length of the tank, not the water line, before choosing among the seven sizes. On a bowl or cube with a thick rim, test that the brackets sit level so the light does not tilt toward one side and leave a dark corner where debris and algae collect.