Lifegard Aquatics Replacement Lamp for QL Series UV Sterilizer - 25 W Lighting Estes Special Spectrastone Gravel is

Estes Special Spectrastone Gravel is a premium non-toxic gravel designed specifically for desktop tanks

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843 kcal/kg

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Lifegard Aquatics Replacement Lamp for QL Series UV Sterilizer - 25 W Lighting Estes Special Spectrastone Gravel isReplacement bulb for the 25W QL Series UV Module. Ultraviolet light bulbs lose their effectiveness over time, the same way fluorescent bulbs lose their color spectrums from continued use. UV bulbs should be replaced every 8 12 months for the most effective sterilization and clarification of your water.