Q: Do I have the right filtration system
for my pond, or do I need to upgrade?
Dee – Russell Springs, KY
A: Pond filtration can be tricky—and confusing. Mechanical filtration is designed to remove solid matter from your pond’s water, but because there are different types and sizes of filters, determining whether you have the right one can be a challenge.
In general, pond product manufacturers offer three types of filters:
- Waterfall or BioFalls box filter, which works in a 1,000-plus gallon pond
- Pressurized filter, designed for ponds up to 5,000 gallons
- In-pond filter, ideal for smaller ponds up to 1,200 gallons
If your filter is correct for your pond’s size but you’re still not achieving crystal clear results, something else could be happening below the surface.
When most people install a pond in their yard, they add a few goldfish or koi for fun and color. The filtration system included with the pond will work just fine—for a while. But before long, Mother Nature will do her thing, and those “few fish” will multiply into a pond full of fingerlings!
All those fry are a sign of a healthy pond, but they produce a lot of waste. In fact, 40 1-inch fish equal one 12-inch fish in terms of waste production. So if that pond is going to be home to all those fish, the old filter will need a little help. It’s time to upgrade to a larger filter or add a second filter.
Pressurized filters, such as The Pond Guy® AllClear™ PLUS Pressurized Filters, are an easy way to add to an existing filter. They’re easily buried in the ground for minimal visual impact, they can be run in line with your existing plumbing if you have a small waterfall, and they come in a range of sizes to fit any size pond. Plus, many models have the option of an ultraviolet light to help fight green water.
Of course, filtration isn’t the only answer. Natural bacteria and aeration greatly help water quality, too.
Pond Talk: How have you upgraded your pond’s filtration system?