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Is there any danger to my fish if the pond is always in direct sunlight? | Decorative Ponds & Water Gardens Q & A

Q: Is there any danger to my fish if the pond is always in direct sunlight?

Q: Is there any danger to my fish if the pond is always in direct sunlight?

Claudia – De Witt, AR

A: Sunshine has its benefits – but it also has its dangers. Direct sunlight with no shade can raise the water temperature in your pond and reduce the levels of oxygen available to your fish. All those rays can also fuel algae blooms, as well as give your fish a sunburn (yes, really!).

Don’t worry: You don’t need to relocate your water feature to a less sunny locale. There are some easy ways to add shade to your pond, and here’s what we recommend.

  • Terrestrial Shade: Trees, and terrestrial and marginal plants growing alongside your pond can provide plenty of shade from the outside. Blue Flag Iris and Dwarf Cattail, for instance, planted on the south or west side will cast cool, shady shadows for your fish.
  • Get Creative with Canopies: If planting trees or plants isn’t an option, consider installing a tent or canopy over part of your pond. In addition to creating protection from the sunshine, a canopy can also add some dramatic flair to your backyard décor.
  • Aquatic Plants: Aquatic plants, like water lilies and water hyacinth, create scads of underwater shade for your finned pals. Simply plant lilies in baskets or plant bags and place them in strategic spots around your pond or toss in water hyacinth to create a floating hideout.
  • Fish Shelters: For a super easy solution, drop some fish shelters, like our Nycon Koi Kastle Fish Shelter, in your water garden. Another option is to create fish caves with carefully positioned rocks. They’ll create a shady shelter that’ll protect the fish from sun – and predators.

A word of advice: Don’t over shade your pond. You still want to maintain an area with some sunlight, which helps bring out koi colors, keep the water a comfortable temperature and help your plants grow.

If you think your fish are already showing signs of heat stress, check your water temperature with a pond thermometer, like Pond Logic® Floating Pond Thermometer, and do a partial water change if the water temperatures reach the high 70s or above. You might also want to add some pond salt, which will help gill function and reduce fish stress, as well as some Stress Reducer PLUS, which alleviates stress, restores a healthy slime coat and removes dangerous toxins from the water.

Pond Talk: Have your koi or pond fish ever had a sunburn?

Give Your Fish a Break from the Sun - Nycon Koi Kastle Fish Shelters

Should I always add pond salt to my pond, or just when my fish are sick? | Decorative Ponds & Water Gardens Q & A

Q: Should I always add pond salt to my pond, or just when my fish are sick?

Q: Should I always add pond salt to my pond, or just when my fish are sick?

Ron – Whitefish Bay, WI

A: To salt or not to salt? It’s a question hotly debated by koi hobbyists. When used in low doses, salt has many health benefits for your fish – but when used in too-high doses, it can do more harm than good. Here’s what you need to know about adding salt to your pond.

Benefits Aplenty

Salt isn’t just for helping to heal sick fish. Constant exposure to low salt levels can improve your fishes’ overall health. It can improve gill function and oxygen uptake, reduce stress, and build a stout slime coat that’ll help them ward off parasites, bacteria and disease. Salt also adds beneficial electrolytes to the water.

The Right Type

You can’t, however, just dump a scoop of common salt, like tasty table salt or ice-melting rock salt, into the water. Fish friendly Pond Logic® Pond Salt is made from pure evaporated sea salt – and that’s it. It contains no iodine, chloride or other harsh chemicals that could harm your fish.

Just Add Salt

If you’re adding low doses of salt to your pond and have no aquatic plants, use 2½ cups of salt per 100 gallons of water and disperse the pond salt evenly around the shoreline. Salt will not evaporate or get filtered out, so the only time you need to add more salt is when you do water changes.

Mind the Plants

If you have lilies and other aquatic plants living with the fish in your water garden, use 1¼ cups of salt per 100 gallons of water. Scatter it around the shoreline, being careful to avoid direct contact with your greenery.

Salt Therapy

Fish with parasites or bacterial infections can benefit from a salt bath. Prepare an isolation tank with 5 cups of salt per 100 gallons of pond water (not tap water) and add some vigorous aeration. Place the patient in the tank for 5 to 10 minutes, and then return it to the pond.

Try adding some salt to your pond today. Your fish will thank you for the spa treatment!

Pond Talk: Have you had success treating your fishes’ disease with salt baths?

Improve Gill Function & Reduce Stress - Pond Logic® Pond Salt

I heard fish can get swim bladder disease this time of year, but what is it? | Decorative Ponds & Water Gardens Q & A

Q: I heard fish can get swim bladder disease this time of year, but what is it?

Q: I heard fish can get swim bladder disease this time of year, but what is it?

Becky- Trumbell, CT

A: Many bony fish, like the fancy goldfish found in ornamental ponds, have an organ called a swim bladder. This gas-filled sack has two main purposes: It helps the fish control its buoyancy and remain at a particular depth without having to waste energy on swimming, and it keeps the fish in an upright position. When a fish is unable to control its depth, or starts swimming sideways, upside side down, or head or tail down, it may have “swim bladder disease.”

A fish with swim bladder disease can be a troubling sight to see, but it can be treated. Here’s what you need to know about what causes it and how to get your fish swimming the right way again.

Your Gluttonous Goldfish

Although intestinal parasites and microorganisms can cause swim bladder disease, it mainly stems from overeating, eating too quickly or gulping too much air during feeding time. The fish gobbles mouthfuls of pellets, which expand like sponges as they soak up water in the mouth and digestive tract leading to constipation. Enough pressure on the swim bladder will cause the fish to swim any which way but up.

Time for a Diet Change

Water temperatures dip – sometimes precipitously – in the fall, and that change can slow your fishes’ digestive processes. They have a harder time digesting protein when it’s cold, and it can build up in their gut and result in an enlarged intestine.

To prevent this from happening, switch your fish food during the fall (and spring). Using a pond thermometer, periodically check your water temperature. Once temperatures are consistently between 40°F and 50°F, change over to a lower-protein, higher-carbohydrate diet like Pond Logic® Spring and Fall Fish Food, which is packed with easier-to-digest wheat germ. Feed them two to three times a week and only give them an amount that they will eat within 5 minutes. When temperatures drop below 40°F, stop feeding them entirely.

Peas to the Rescue

The best treatment for swim bladder disease is found in your refrigerator or freezer. Frozen or cooked peas, will blast through the impaction and reduce the pressure on the fish’s swim bladder. If your fish starts floating sideways, we recommend you stop feeding them for a few days and then hand feed peas to help clear up any blockages.

Medicating fish in outdoor ponds with cooler temperatures really is not an option, as the medications won’t work – so stick with the fasting-plus-peas remedy.

If one of your fish is really stressed, a salt bath could help – but you will need to dissolve the salt in an indoor holding tank filled with warm 78 to 80ºF water. Keep in mind that when you transfer your fish from the cooler 40°-50°F outdoor water to the warmer treatment tank, that temperature change can easily shock the fish. It should be avoided.

Pond Talk: Have you ever had to treat one of your pond fish for swim bladder disease? If so, what did you do?

Easy To Digest In Low Temperatures  - Pond Logic (r) Spring & Fall Fish Food

I went to clean my filters and found worms! What are they doing there? | Decorative Ponds & Water Gardens Q & A

Q: I went to clean my filters and found worms! What are they doing there?

Q: I went to clean my filters and found worms! What are they doing there?

Gene – Tehachapi, CA

A: They’re weird looking, they’re tiny, and they’re blood-red – or at least a creamy pink color. What are they? They’re non-biting midge fly larvae, also known as bloodworms. Though they’re an unsettling infestation to see in your filter, they’re actually a sign that your pond is happy and healthy.

What’s In a Name

Midge flies hail from the family Chironomidae, which includes more than 10,000 different species worldwide. Some varieties appear bright red in color thanks to a hemoglobin-type substance that helps them live with oxygen-depleted water, giving them their “bloodworm” nickname.

As adults, midge flies resemble mosquitoes, but they have fluffy antennae and no blood-sucking proboscis. Large numbers of them can be a nuisance as their droppings can cause damage to paint, brick and other surfaces. And when their tiny corpses pile up, they can cause a stink.

Feasting in Your Filter

These insects thrive in freshwater aquatic and semi-aquatic environments. In their larval stages, they live in tree holes, plants, rotting vegetation, soil and artificial containers – including filtration systems, infesting media pads where there’s an abundance of organics from debris and fish waste. They spend their time attached to the container’s solid surface and eat as food floats by.

Midge flies lay their eggs in water, preferring it to be still, clear, dark and safe from critters like fish and frogs that nosh on the larvae when they emerge. To protect themselves, the bloodworms actually create and live in tiny half-inch tubes they build from mud, algae and other naturally occurring resources. Look closely in your filter, and you’ll probably see some of these worm-sized mud huts.

A Tasty Fish Treat

Don’t worry: These little guys won’t harm your pond or your fish. In fact, if one wriggles its way into your pond, it will be a welcome treat for your fish. Goldfish and other smaller fish will gobble them and their little mud homes; koi and other larger fish will treat them as tasty hors d’oeuvres.

Bloodworms are quite nutritious for fish. In fact, the insects are about 55 percent protein – which is a key nutrient fish need to grow, reproduce and maintain their health. So rather than balk at the tiny worms, scoop them out of your filter and give them to your pond dwellers. They’ll thank you for them!

Pond Talk: What kinds of treats do you feed your pond fish?

Four Densities for Every Filtration Need - Matala(r) Filter Media Pads

My fish has something red on its side. What could it be? | Decorative Ponds & Water Gardens Q & A

Q: My fish has something red on its side. What could it be?

Q: My fish has something red on its side. What could it be?

Ted – White Marsh, MD

A: It sounds like your finned pal has a parasite called anchor worm. And they’re no fun.

These copepod crustaceans from the genus Lernaea bury themselves into the muscles of fish where they live and grow for several months, transforming into an unsegmented worm-like protrusion. Once developed, they make their way out of the fish, leaving behind bad wounds – which is the red area you’re seeing on your fish. Right before anchor worms die, they release their eggs and the cycle repeats over and over again.

A fish suffering from an anchor worm infestation will show the following signs:

  • Frequent rubbing or ‘flashing,’ which is when it rubs its body up against objects attempting to dislodge the parasite
  • Localized redness
  • Inflammation on its body
  • Tiny white-green or red worms in wounds
  • Breathing difficulties
  • General lethargy

Parasites like anchor worms can be introduced into the pond when new aquatic critters or plants are added to the existing mix. Unbeknownst to water garden hobbyists, the anchor worms hitch rides on the other fish or in the soil and roots of plants and establish themselves in their new home.

The cure for anchor worms is a pond-wide treatment with an anti-parasitic medication like KnockOut™ PLUS. As soon as you see signs of anchor worm, pour the recommended amount in your pond daily for seven consecutive days. When the infection clears up, continue treatment for an additional three days to ensure the parasites are gone for good.

If you plan to add fish or plants to your pond this summer, you can also use KnockOut™ PLUS as a preventive. It treats a variety of other fish ailments, including ich, fungus and flukes. Simply add it to the water when you introduce the new pond inhabitants.

Good luck getting those anchor worms under control. We hope your fish feels better soon!

Pond Talk: Have your fish suffered from some sort of parasite? How did you get rid of it?

7 Day Fish Treatment for Anchor Worm - CrystalClear® KnockOut™ PLUS

One of my fish isn’t swimming upright. What’s wrong?| Decorative Ponds & Water Gardens Q & A

Q: One of my fish isn’t swimming upright. What’s wrong?

Q: One of my fish isn’t swimming upright. What’s wrong?

Cherie – Englewood, CO

A: Unless you’ve taught your pond fish some pretty cool party tricks, it’s possible that they’re not getting enough oxygen due to a lack of aeration.

Fish will display some odd behaviors when they’re not getting enough oxygen, including gasping for air at the surface, hanging vertically in the water, and spending a lot of time around the waterfall or stream where oxygen levels are at their highest – at least for the few hours each day when the pump is running.

Some other telltale signs of insufficient aeration are:

  • The water in your pond appears to be stagnant in certain areas
  • You’ve noticed a growing mosquito problem
  • Algae growth always seems to be a battle you can’t win
  • Muck has accumulated at the bottom of the pond

Medical issues, like swim bladder problems, could be causing your fish to swim sideways, too. But, before you take your finned pal to the veterinarian, try adding or adjusting the aeration in your water feature. You can also check your ammonia and nitrite levels using a water test kit.

If your pond has a lot of fish for its size, or is a medium or large water garden or koi pond up to 16,000 gallons in size, consider adding an Airmax® KoiAir™ Aeration Kit. Its energy-efficient design includes a dual diaphragm pump that infuses oxygen into the pond while being virtually maintenance free.

If you have a handful of fish in a smaller pond that’s up to 2,000 gallons in size, check out the Airmax® PondAir™ Aeration Kits. It’s designed for decorative ponds and water gardens, and features an airflow control valve that allows you to adjust the aeration output with the turn of a dial.

Aeration should help your fish swim upright again. But if it’s still acting strange after you’ve pumped up the oxygen, you may want to check in with your veterinarian for medical advice. Good luck!

Pond Talk: What’s the strangest thing you’ve seen your pond fish do?

Water Testing System For Ponds - PondCare(r) Master Test Kit

Why are water changes important? | Decorative Ponds & Water Gardens Q & A

Q: Why are water changes important?

Q: Why are water changes important?

Shirley – Warr Acres, OK

A: It’s nice to open a window on a warm spring day and let the fresh air flow through your house, right? Well, a partial or complete water change in your koi pond or water garden is the same thing: It freshens your finned pals’ environment, making them happy and healthy.

Here are five reasons why water changes are so important to your fish, plants and other aquatic life:

  1. Nutrient Removal: Muck and debris buildup happens in just about every water feature. A water change manually removes any excess nutrients and chemicals like nitrates, phosphates and ammonia that can be harmful to fish and other underwater critters.
  2. Healthy Fish: Fresh, clean water means improved water quality, which ultimately promotes your fishes’ health. Just as you need oxygen to thrive, your fish need clean water to thrive. Their well being is directly related to the liquid environment in which they live.
  3. Algae Control: Pea soup and string algae feed on all that decomposing waste, which they use as fertilizer. By removing those excess nutrients in the water column with a water change, you can discourage the growth of algae.
  4. Fights Foam: Foam forms when excess organic material has accumulated in your water garden. When this nutrient-laden water pours down your waterfall, the air and water collide, causing the proteins and other organics to be trapped inside bubbles rather than turning into ammonia and nitrites. A water change will quickly reduce that foamy buildup.
  5. Clears Water, Stabilizes pH: A water change will also improve the appearance of cloudy water and maintain pH levels, resulting in a pristine pond filled with healthy fish, lush greenery and clean water.

To keep stress levels down among your fish, we recommend doing partial water changes as soon as water temperatures reach 50° F. In addition, be sure to add some Stress Reducer PLUS and LiquidClear™ to your water. The Stress Reducer PLUS forms a beneficial slime coat on your fish and makes tap water safe for them. The LiquidClear’s™ beneficial bacteria helps to digest dead organics in the water, making it crystal clear.

Pond Talk: How often do you do water changes in your koi pond or water garden?

Builds Protective Slime Coating - Pond Logic (r) Stress Reducer PLUS

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