I recently purchased 2 of these lights for a 30 gallon Glofish aquarium. The products of the well-known Glofish brand are quite expensive and I was happy to see this product at a much better price. I've also read that too much blue/black light can stress fish, so this product won my vote with the combination of white and blue light. The product arrived in 2 days in perfect condition. I only had to give these lights a 4/5 because they were WAY too bright to fit in the tank so I couldn't use them as an air stone. I figured if it hurts me to see the light outside the aquarium, then the fish probably don't like living directly above it. But I just pulled a long fluorescent tube out of the aquarium lid and put it back upside down so the light hits the aquarium and they look wonderful.
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