I have an oddly shaped 20 gallon tank. They don't make them anymore and I have to mod everything with this tank. The hardest part was dealing with the lighting. The tank was originally a hooded tank, but it doesn't work anymore, so we took the hood off and had to take care of the headlights. This is a thin LED strip that I was able to attach to a small piece of rim where the old hood used to be and it works. not perfect but it was the best I found. The light is fantastic! In white mode, the light is sharp and clear, not the yellow light commonly found in aquariums. When on in blue mode, it simulates darkness but is still bright enough to see your fish. On the other hand, there is no way to turn on the light in different stages without changing it manually. Only 1 switch, the same switch can be set to only white, only blue or both blue and white. It is, other than it doesn't suit my fancy needs, this light is great, visually unobtrusive, just buy it, you'll love it.
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