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Blue Aquarium Lights?

Can I leave Blue Aquarium Light on all Night?

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5W UVC Aquarium Green Clean Light Algae Clear Fish Tank Water Clean Lamp Submersible for Swim Pools Pond Fish Tank Filter Pump : Pet Supplies

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Blue Aquarium Lights?

Can I leave Blue Aquarium Light on all Night?

Can I leave Blue Light on in the fish tank? Does it Affect Their Sleep?