Hi everyone. I have a small pond of approx 800 gals that we've had and loved for years and recently used a Tetra Bio-Pressure filter with UV light. Recently the light housing cracked and will no longer seal the unit and since Tetra will not offer a replacement for a three year old light I am forced to purchase a new filtration system. Certainly the new filter will not be a Tetra brand so I am trying to find some information about what others are using and what might be considered the "best,most reliable" brand on the market. Thanks in advance.