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My fish hang out near my waterfall during hot days. Do I have enough aeration in my pond? | Decorative Ponds & Water Gardens Q & A

Q: My fish hang out near my waterfall during hot days. Do I have enough aeration in my pond?

Q: My fish hang out near my waterfall during hot days. Do I have enough aeration in my pond?

Amanda – Rowlett, TX

A: On hot days, who wouldn’t want to hang out near a waterfall! For humans, the water pouring into the pond cools and hydrates the air; for fish, that action acts as a giant aeration system, infusing oxygen into the water beneath the waterfall.

But that raises a valid question: If your fish spend a lot of time near the waterfall, does it mean they’re not getting enough oxygen? Yes, it’s possible. Here are some questions to ask yourself about your pond’s aeration situation.

Is It Getting Full Aeration?

If you’re running your waterfall 24 hours a day, your pond is likely getting full aeration. If your pond is more than 24 inches deep, however, and you have a skimmer/waterfall system in place, more aeration may be necessary. Why? Because the oxygenated water will circulate across the water surface, leaving the water at the bottom of the pond stagnant. Adding an aeration system will prevent stagnation by raising the bottom water to the surface.

Do You Have Many Plants?

Plants may release subsurface oxygen to the water during the day, but at night those plants take in oxygen, which means your fish may be gasping for air. If you have quite a few plants and your waterfall is off—and you experience an algae bloom—you should definitely think about adding some aeration.

Do You Have Many Fish?

The more fish in your pond, the more oxygen you’ll need—which means you’ll need more aeration. If your pond has a high fish population, consider adding some more aeration. For comparison, we recommend one 6- to 8-inch fish per 10 square feet of surface area.

How’s Your Muck Level?

Another clue that your pond is insufficiently aerated is the amount of muck that has accumulated at the bottom of your pond. When your pond is properly aerated, muck naturally breaks up thanks to the healthy and growing population of gunk-gobbling beneficial bacteria.

Low-Cost Aeration

If any of these scenarios apply to your pond, we recommend adding the energy-efficient Pond Logic® PondAir™ Aeration System for ponds up to 2,000 gallons or the Pond Logic® KoiAir™ Aeration System for ponds up to 8,000 gallons. They help to circulate the water and add valuable oxygen, providing the best possible environment for your fish.

Pond Talk: What do you do to ensure your finned friends get enough oxygen during the summer months?

Breathe Life Into Your Pond - Pond Logic® PondAir™ Aeration System

After getting out of my swimming pond, I had a leech on my leg! How do I remove leeches from my pond? | Ponds & Lakes Q&A

Q: After getting out of my swimming pond, I had a leech on my leg! How do I remove leeches from my pond?

Q: After getting out of my swimming pond, I had a leech on my leg! How do I remove leeches from my pond?

Dennis – Blythewood, SC

A: There’s nothing like climbing out of your pond and finding one (or more!) of these little blood suckers stuck to your leg. What are they, and how do you banish them from your pond?

Getting to Know Leeches

Leeches are 2-inch-long brownish-black segmented worms that are a distant cousin to the earthworm. They use their suction cup-like mouths and teeth to latch on to vertebrate and invertebrate animals, feeding on their blood. Of the 700 different leech species, the majority live in freshwater environments, like your swimming pond.

Leeches love to live in the debris at the bottom of your pond. In all that muck accumulation, they get comfortable, find food and hide from predators—also known as fish—swimming overhead.

Despite their bad reputation, leeches aren’t all bad. Up until the 18th and 19th centuries, these worms had been used medicinally on humans to improve and restore blood circulation. The practice waned for a time—likely a combination of the yuck factor and modern medicine—but it’s slowing coming back into favor. In fact, Emma Parker Bowles (daughter of Camilla, Duchess of Cornwall) recently wrote about how leeches helped relieve her of debilitating migraines.

Kicking Leeches to the Curb

Unless you practice leech therapy, you probably want to evict those invertebrates from your pond. The best way to do that is to remove their preferred habitat—all the muck and debris covering the bottom of your pond. How do you do that? Here’s a four-step approach:

1. Pull Out the Debris: First, use a lake rake, like the Pond Logic® Pond & Beach Rake, to remove weeds, accumulated debris, algae, decomposing plants and muck.

2. Add Beneficial Bacteria: Next, add some beneficial bacteria, like those found in MuckAway™. The bacteria will head to the bottom of the pond and digest whatever muck remains. Remember that it will take some time to break down all that debris, so be patient.

3. Let Your Fish Do the Work: With nowhere to hide, those leeches will become tasty meals for your fish. You may even consider adding some more leech-eating fish to your pond.

4. Trap and Destroy: For those leeches that elude your finned friends, you can trap and remove them with a baited trap. Punch leech-size holes in a coffee or aluminum can, bait it with raw chicken or fish heads, and position it in a shallow area of your pond. When the worms go for the grub, they can get in but not out because the burrs from the hole punches will prevent them from escaping. Remove the can once it’s full and repeat until the leeches are gone.

If a leech latches onto you, don’t worry. In most cases, it won’t do any harm. In fact, you might not even feel it as the tiny critter injects the spot with anesthetic-anticoagulant combo while attaching itself with its suckers. You can remove a leech by breaking its suction seal with your fingernail or another blunt object, causing the worm to detach its jaws.

Pond Talk: Do you have any leech-removal tips to share?

Reduce Mucky Pond & Lake Bottoms - Pond Logic® MuckAway™

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