Aquarium UV Bulbs

Spare UV bulbs for aquarium UV Sterilisers are essential to keeping your filtration system in perfect working order.

UV light emitted from sterilisers helps to bond single-celled algae together so they are of a size that can be captured and dealt with by the bacteria in your filter media. However each bulb inevitably has a shelf-life. Although your bulb may still be emitting white-light, its' UV output is diminished over time and you should think about replacing the bulb roughly every 3-6 months to keep it active and running at its optimum levels.

At Swell UK we sell a range of replacement bulbs at low prices to keep the costs of running you beautiful tank at it's lowest.

Order before 3pm weekdays and we can get your new bulb despatched the very same day, meaning you can clear that murky tank water faster.