Koi Pond Cleaning in Spring

Spring time is when you pond comes back to life, a time of awaking, of beauty, and freshness. Your Koi Fish pond changes through the seasons, so will your challenges in keeping it healthy. A healthy, thriving pond is a living entity in balance with nature. It is essential to appreciate why a natural pond is the perfect model for you own backyard pond, and what is likely to happen if you deviate from that ideal, that is what makes spring maintenance so important.

When your Koi Fish pond water is warming up, the climate is subject to fluctuations that can prove stressful to your fish, whose immune systems are not fully working yet.

Checking your ponds ammonia and nitrite is very important during spring maintenance. The increase in fish metabolism coupled with regular feeding can lead to a rapid increase in these toxins. In addition, plant matter that has died during the winter will decompose as the water temperature increases. This is one of the reasons why Koi pond cleaning is so important.

Koi pond filters take time to establish again after the winter and are thus less effective at dealing with increased biological activity. If you detect ammonia or nitrite levels, carry out a partial water change. Remember to add a dechlorinator to your water.

To ensure healthy Koi in the spring, you must carry out good preparation for winter and spring during the preceding summer. Make sure that water quality is satisfactory, including dissolved oxygen, and feed with a good quality diet. Koi entering the winter months in a healthy condition do not experience disease outbreaks in spring.

Print out our Water Quality Care Record for Help in Keeping Your Pond In Great Condition

Koi Fish Pond

If you took care of your pond through the winter season then the transition to the summer season should go smoothly and easily. The first thing you need to do for koi pond cleaning is test your water levels before your fish start eating. If the reading is not where it is supposed to be make the necessary steps to get it ready for your fish. It is imperative to go into the beginning of spring and through the summer months with a clean pond.

As your pond water starts to rise in temperature toward 50ºF you will want to clean your pump (your fish will start eating soon, and will soon need to turn the pump on) check out all the moving parts to ensure they are clean and in working order. It will not be long before your fish will need this so go ahead (after it is clean) and turn your pump on, check to see that the flow is good through the Koi pond filters.

Try and remove most of the algae by hand, then add a natural scum treatment to kill the rest. You may need to repot some of your plants or add gravel to the tops.

Use a pond vacuum to clean away any silt and leaf matter that settled in your pond over winter, doing this will also reduce the risk of your pump getting blocked. If you have an ultraviolet clarifier system you will need to turn it on now during spring maintenance. Make sure and clean you sleeve and replace the bulb.

Replace last year’s fish food with fresh food. Old food is just asking for trouble. The nutritional value will be depleted.

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Fish Care

It is a good idea to add a general broad-spectrum treatment for fish in early spring to protect them while their immune systems are low.

Once your pond temperature reaches 55º F you can start feeding your fish, but sparingly and feed them in the early morning. When you start feeding your fish offer them a low-protein wheat germ-based food that is easy to digest. You fish will also start back developing their immunities.

While feeding your fish check that they are swimming around and feeding normally. Also look and check to see if their fins are intact and look for signs of fungus. Provide shelter for your fish until your plants grow back. Fish will feed more and grow vigorously as soon as the water temperature reaches 57º F. This is the time to wean them off their low temperature food onto a higher-protein growth food.

If you have been thinking about draining your pond, during spring maintenance is the only time I recommend you do it. Make sure your fish are not spawning before you start. Fish and plants will cope with a clean out far better in early spring than at other times of the year. Draining your pond gives you a good chance to get a good look at your fish.

Pond Algae Control

Here are some simple ways to help control algae in your pond.

Filamentous algae is easily raked out of small ponds during koi pond cleaning.

If you reduce sunlight by shading the pond with trees, shade cloth, arbors, etc., there will be a corresponding reduction in algae. 50% shade is significant, but 70% shade should provide fairly clear water. Water can also be shaded with dye (such as Blue Lagoon Dye or Loch Ness Dye).

When fish are fed, or fertilizer is added to lilies and other plants, there is no scarcity of nutrients for algae. The biological filter has no effect on the nutrient level because a biofilter only converts ammonia to nitrate, which is still nitrogen. Water exchange has a limited effect and is typically not feasible. One nutrient needed by the algae is phosphorus, and it can be removed with a UV water clarifier, when added on a regular basis.

Part of the cycle of water lilies and other aquatic plants includes foliage turning brown and then rotting off. This is normal as long as new foliage is emerging as well. To help reduce the amount of sludge build-up in your pond, remove dying foliage, including spent flowers, from plants before it has a chance to fall into the water and decay.

In the right dosages a Commercial Algacides can selectively kill the algae without harming the other plants or animals.

Algaecides, Natural—Things like barley straw and barley extract have a longer effect because they remain active in the water.

UV Irradiation—A UV sterilizer will disrupt the reproductive process of planktonic algae and keep your pond clear. Use at least 22,000 µWs/cm2 and flow the entire pond's volume through the unit at least six times per day.

To Make Your Spring and Fall Maintenance Easier On You Check Out Our Pond Cleaning Supplies

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