However, the longer wave UVA and UVB can cause molecules to vibrate and rotate resulting in heating up.
The implications demonstrate a true UV Sterilizer's ability to lower oxidative stress on fish and other inhabitants (including plants & corals) and work to provide a better Redox balance as well as known disease prevention & clarification abilities.
The second picture demonstrates clarification with a before and after picture of an aquarium with green water; As well as a comparison between a green pond without UV Sterilization and one of our client's ponds with a UV Sterilizer/Clarifier The picture below further pictorially displays how a TRUE UV Sterilizer can help not only with clarification of an aquarium/pond with an assumed healthy bio filter (which should be but a minor reason to own a TRUE UV Sterilizer).
This is the thrust of this article, as while it is certainly a good tool for green/cloudy water especially in ponds (assuming the bio filter is healthy), it is this Sterilization/Redox Balance aspect that years of hands on use in 1000s of applications has made the difference.
Further Reading: Aquarium Disease Prevention Please click to enlarge for a better view.