
When to start feeding Koi after winter?
Nine Steps for Springing Your Pond to Life
- Inspect The Pond Take a careful look around your pond. ...
- Clean The Pond No matter how much preparation you have done, winter has likely left the pond in less than perfect condition. ...
- Partial Water Change Starting the season with a decent water change (usually around 25%) can be a big help for the pond as a whole. ...
How often should I Feed my Koi?
- Summer is a good time to feed high growth food to your koi. For the younger fish that are growing, the protein content is very important. ...
- Be sure to feed enough food for the fish, but make sure your filtration system is able to keep up. ...
- Learn as much as you can about koi fish and the types of best koi food that are available. ...
What temperature do you stop feeding Koi?
When the water temperature gets to 40 degrees Fahrenheit, you should stop feeding them. They will be in the hibernation state. At this stage, the koi fish does not respond to most of the water changes. You also have to maintain good water quality when your koi fish is in a hibernation state.
How can my Koi survive the frigid winter?
What Do I Do with My Koi Pond in the Winter?
- Use pond de-icer: You also need to make use of pond de-icers for your koi fish pond during winter. ...
- Set up pond heater: You have to set up a pond heater for your koi fish pond. ...
- Use water devices: Using water devices like a filter, air pump, fountain, etc., will help prevent ice formation. ...

Should you feed koi during winter?
Do koi fish eat in the winter? Koi can eat in the winter, but cannot digest food. So when it is under 50° F, we should NOT feed Koi.
How do you keep koi alive in the winter?
Koi fish can survive winter in an outdoor pond as long as it's at least 2 feet deep, clean, an aerator is put in the shallow end, a de-icer keeps a hole in the ice, and you don't feed them. All of the water in a pond doesn't freeze which is why at 2 feet deep your koi fish will be fine.
Why would you not feed koi in a pond in winter?
Rate of metabolism for koi and goldfish is greatly reduced during low water temperatures, especially below 50F. This is why they do not feed during the cold periods, when water temperatures drop and stay below 55F. Koi go into a state of torpor.
How do I keep my pond fish alive in the winter?
As long as your pond does not freeze to the bottom and an air hole is provided on the pond's surface, your fish will survive the winter. If your pond is at least two-feet deep, the proximity of the earth to the pond's surface will keep the pond from freezing any deeper than eight inches.
Should I keep my pond pump running in winter?
Should I Leave My Pond Pump Running In Winter? Many guides will recommend that you completely shut down your pond pump over the winter to prevent the water from becoming super chilled; however, this isn't necessary for our climate.
Can koi freeze and come back to life?
Koi are capable of surviving through an entire winter in a frozen pond, provided their water has sufficient oxygen. Poor-quality water will not sustain koi if they are frozen on top, as they will not be able to surface in order to breathe. Survival under ice is possible for koi; many wild populations do so.
How often should I feed my koi in the winter?
two to three times weeklyAs water temperature falls below 50 degrees to 41 degrees F, you'll only feed your koi two to three times weekly. And as water temperature gets below 41 degrees F, you'll stop feeding your koi altogether because they should be in hibernation mode at that point.
How long can koi fish go without food?
two weeksThe short answer is that koi fish can survive for up to two weeks without food. However, various factors contribute to the koi's ability to survive without food. With that in mind, the two-week estimate is based on the koi fish's metabolism at the height of summer when it feeds regularly.
How much do you feed a koi fish in the winter?
Cold weather Feed 1 to 2 times per day. If the water temperature drops below 50°F, we suggest you stop feeding your koi (fasting them) since their metabolism slows down. They will only eat what their body requires by grazing on algae as needed.
Do you stop feeding pond fish in winter?
Feeding fish in winter Start feeding fish daily again at a water temperature of 10 °C or higher. At lower temperatures metabolism of (cold-blooded) fish is so slow, that they hardly need any feed. In this period you should restrict the amount of feed.
What do pond fish eat in the winter?
A wheat germ based food is recommended as it is easily digested. Microbe Lift Cold Weather is an excellent food at this time of year. As the water temperatures continue to drop to below 60 degrees you should feed only two or three times a week. It can take your fish two or three days to digest food at this temperature.
How deep should a pond be for a fish to survive winter?
18 inches deepDuring the coldest parts of winter, your pond must not freeze all of the way through. There should be enough unfrozen water at the bottom of the pond for your fish to ride out the winter. As a rule of thumb, ponds need to be at least 18 inches deep, ideally 24 inches or more, to overwinter fish.
Can koi fish survive in cold water?
Koi are cold-water fish but thrive in water temperatures between 59-77 degrees Fahrenheit. Because their metabolism reacts to the temperature of the water that they live in, you'll want to be sure your pond has both shallow areas as well as spaces that are deep enough so it does not freeze to the bottom.
Should I heat my koi pond in the winter?
You do not need to heat your koi pond because koi fish can survive cold water temperatures being cold-blooded creatures. However, heating your pond in winter to maintain optimal water temperatures may help your koi avoid parasites and bacteria that proliferate in cold waters.
How deep should a pond be for a fish to survive winter?
18 inches deepDuring the coldest parts of winter, your pond must not freeze all of the way through. There should be enough unfrozen water at the bottom of the pond for your fish to ride out the winter. As a rule of thumb, ponds need to be at least 18 inches deep, ideally 24 inches or more, to overwinter fish.
How do you winterize a small koi pond?
9 Tips for Winterizing Your PondInstall pond netting. ... Remove leaves and debris. ... Clean the skimmer basket. ... Trim dead or dying foliage. ... Prepare waterlilies for winter. ... Add cold water bacteria. ... If you leave your pond running. ... If you shut down the pond.More items...•
How often should I feed my koi?
The next phase is important. As water temperature falls below 50 degrees to 41 degrees F, you’ll only feed your koi two to three times weekly.
Why does the temperature of a koi pond drop?
As the air temperature falls, your koi pond water temperature will drop. There’s a direct relationship between water temperature and koi feeding because your koi’s digestive system slows down as the temperature does (with one exception).
What temperature should koi be?
Between 68 and 86 degrees F is the most active time for your koi. They’ll feed more than they will in any other temperature range, so you’ll feed your koi two to four times a day. Their digestive systems start slowing down again once the temperature falls below 68 degrees F.
How do I care for a koi pond?
It can be time-consuming to care for your koi ponds and follow the right feeding schedule all throughout the year. You’ll need to watch your koi and observe their feeding habits; the above guidelines are just guidelines, especially as the weather gets colder.
When do koi start feeding again?
Once your koi are in hibernation mode, their digestive systems will slow to their lowest point, and you won’t have to start feeding them again until spring. When koi hibernate with food in their stomach it can rot and start a bacterial infection that could kill them. Once you completely stop feeding for winter (water below 41 degrees) do not start feeding again until Spring. Even if they beg during an unseasonable warm-up in January because it can it quickly cool down again and catch them with food in their stomach.
Can koi fish be fed in cold weather?
Your fish will be just fine, but colder weather does mean you need to adjust your feeding schedule . Here’s how your koi feeding schedule will change as the temperature falls – even to the point where you stop feeding them until the spring.
Does Alabama Aquarium have koi?
Alabama Aquarium helps koi owners keep their animals fed on schedule. Get a quote for our koi water garden maintenance services and let us maintain your ponds for you.
What is the best koi food for winter?
During winter season, when the water temperature is cooler, the best koi food is Saki-Hikari Multi Season. The combination of easily digested wheat germ and probiotic makes this the best fish food when the temperature is cooler below 68 degrees Fahrenheit. Based on the temperature, feeding levels should be adjusted. The colder it gets, the koi will become less active and require less food. When feeding during the colder seasons, be careful not to overfeed, and try to feed during the warmest part of the day. Once temperatures fall below 41 degrees Fahrenheit, feeding should be stopped completely.
What is the importance of koi food?
It has a significance on the performance and overall health of your koi fish. Feeding Koi Food to Nishikigoi.
What are scuds in koi fish?
They are rather small, so they are especially suitable for smaller koi. They are a great source roughage, which will aid in digestion. Gammarus shrimp are also known to be high in carotenoids, which will help bring out the colors in the koi fish. Gammarus is a type of amphipod, which is an organism that serves as a natural food source for the common carp ( FAO ).
What is the purpose of probiotics in fish feed?
The feed is also enhanced with probiotics, which helps the fish digest and utilize the nutrients in the feed more efficiently. The probiotic ingredient in the feed becomes active in the intestinal tract during digestion. This creates beneficial digestive enzymes and results in a reduction of fish waste.
What is the best food for koi?
As recommended by many professional koi breeders, the best koi food for color is Saki-Hikari Color . This feed is formulated to bring out the natural color and beauty of koi fish. It is designed to help the koi develop more rapid and deep coloration.
What is Saki Hikari?
Saki-Hikari has been developed by through many years of breeding show quality koi, and it is formulated with high grade ingredients. The feed is designed to bring out the natural colors in the fish and promote proper growth and healthy immune systems.
Where is the Congo Tetra fish found?
They were discovered in 1949 in the Congo River basin, as their name suggests. In...
How to winterize a pond?
Depending on your pond situation you may choose to keep your Koi in the pond, move some or all to an enclosed holding tank or build a greenhouse around your pond. These are the 4 winter Koi care methods we recommend for you to consider.
How to take care of a pond fish in winter?
When you want to decide how you will take care of your pond fish in Winter, you will have the following options to consider: Keep your koi in the pond for Winter. Move koi to a holding tank inside a garage or enclosed space. Build a greenhouse to cover your pond. Cover your pond with solar cover used for pools.
How often should I med my koi pond?
Koi Pond in Winter & Medication. Medicating the entire pond twice a year, once in spring and once in fall , is also a very important practice. At lower water temperatures, as I said above, Koi are more vulnerable. So before it turns too cold in the winter, ensure your pond and Koi are parasite-free.
Why are koi important?
It is more important than you think, especially in the spring and fall when water temperatures fluctuate, because Koi are cold-blooded. In other words, they cannot control their body temperatures. Instead their environment does.
What to know about winter koi?
The following topics are important to know for winter Koi care and will be covered in this article: Water temperature vs. feeding. Medicating the pond. 4 pond housing options for fall and winter. Winter pond prep Q&A. Fall (as well as spring) is a vulnerable time for Koi because water temperatures fluctuate and start dropping.
Why do koi die in spring?
If you keep feeding them when they cannot digest, these Koi will die by or in spring because of poor digestion.
What temperature should a koi be in the winter?
About 65–68 °F is the turning point. Above is a chart of recommendations by Koi food brand (yellow boxes means it is ok to use). The most common mistake I see is that owners feed as much as their Koi can eat even in the fall and winter. Owners think they are hungry because they ask for food.
How to tell if koi are hungry?
With this increase in bodily activity comes a return of their natural instincts to search for food, which will be presented in their behaviour. When your koi start to become hungry they’ll begin slowly swimming around the pond searching for food. If they’re used to you hand feeding them, they’ll gradually come to greet you at the surface as temperatures increase. At this point, it’s safe to start feeding very small amounts and monitoring wastage. If your koi are actively eating all food, you can slowly increase the amount every day until there is a little waste. If there is pellets left floating on water, you should instead decrease the amount until all daily food is being eaten.
Why is it important to monitor koi food?
This is why monitoring feed at the start of the year is important, as the eco-system (including beneficial bacteria) are still in maintenance-mode and even small drops in water quality can cause stress on fish. If your fish are taking food, it means they’re telling you to prepare more grub in future! If there is pellets left behind, just scoop them out with a pond net and adjust feeding accordingly until your koi properly wake up.
What happens when koi come out of hibernation?
As koi begin to come out of their hibernative state, their bodily functions, including metabolism, start to fire-up once more. With this increase in bodily activity comes a return of their natural instincts to search for food, which will be presented in their behaviour.
What to feed koi in the summer?
If you want to try wheatgerm, we recommend mixing it in with a small amount of a summer feed for the best of both worlds for late-winter/early-spring feeding. You can then switch to a full summer feed routine as your koi become much more active towards the end of spring!
How cold does it have to be for koi to crawl?
As explained in our dedicated koi winter care guide, carp begin to slow down when water temperatures hit around 50ºF (10°c), and they’ll remain in this low-energy state until water temperatures rise above this point. During this period a kois bodily functions slow down to a crawl, including their metabolisms and immune system.
Why don't we feed koi in the winter?
This is the primary reason we don’t feed koi over winter, as both the fish and the pond is in a more vulnerable state and extra waste from food simply puts more stress on a sleepy eco-system. Similar to winter feeding, you can determine when to start feeding koi again in spring based on water temperature, but we personally prefer ...
What are the functions of a koi?
During this period a kois bodily functions slow down to a crawl, including their metabolisms and immune system. Their metabolisms govern their natural feeding instincts, and as this function is all but switched off, no food is necessary until it switches on again in warmer conditions.
How much water does a koi fish need?
These indoor ponds are expensive, and they have more capacities. The water containing ability of such koi fish indoor tanks is around 3000 gallons to 4200 gallons. As a result, the Koi get more space for swimming.
How many gallons of water does a big tank of water hold?
They feel alive in these water circumstances. The average size of the big tank is around 200 gallons to 900 gall ons of water.
What is the responsibility of a tank owner?
As a tank owner, it is your responsibility to remove the gases the degassing is usually happens with the help of a de-icer.
Why is it important to balance koi feed?
The balance of the feed is necessary to keep the Koi alive in cold weather conditions. The temperature falls, and it has a direct impact on the health of a fish.
What to cover a greenhouse tank with?
Purchase a high-quality greenhouse cover for the tank. You can also cover the tank with polyvinyl sheets.
Why does my tank water get cold in winter?
In winter conditions, the tank water gets cold. In addition, it has less oxygen due to low swimming conditions.
How to keep a squid alive?
Keep them alive in the cold weather conditions with excellent swimming. Then, retain them in the holding tank for the hibernation period. As a result, the living conditions improve, and it survives for longer times.
Why do koi ponds need to be in winter?
The winter season allows the Koi to effectively get rid of some of this excess fat and in the case of females, allow them to slim off so they have the chance to reach next season when hopefully they can spawn to release their eggs. Winter is an important season for Koi and every pond is unique in its makeup of Koi and water temperature etc.
Why do koi spawn in winter?
The winter season allows the Koi to effectively get rid of some of this excess fat and in the case of females, allow them to slim off so they have the chance to reach next season when hopefully they can spawn to release their eggs.
What is the importance of winter for koi?
Winter is an important season for Koi and every pond is unique in its makeup of Koi and water temperature etc. The most important thing is that you do not just feed the fish for the sake of it and walk away. Any uneaten food must be removed so it cannot rot and pollute the water and if you do have to remove uneaten Koi food, do not make the mistake of putting it in again, to have to remove it again.
How long do koi live in the winter?
We always base the answer on our own experience of keeping Koi during the winter which extends to over 25 years.
Do you blend koi food?
By doing this the ratio of food can be gradually changed to suit the temperatures. (Top Tip) Only blend a months worth of food at a time.
How to Keep Koi Fish Safe in Winter
If your fish reside in an area that can reach freezing temperatures, be sure to address the following checklist to ensure your fish will survive the winter.
Can I Keep My Koi Fish Inside (link to other article)
Provided you have addressed the points above, your fish will be just fine outside all winter long. If you cannot provide the correct outdoor environment for your fish over the winter, you will need to bring them to a temporary indoor tub, commonly referred to as "over-wintering."
How to Keep My Koi Fish Healthy During Cold Snaps
Temporary periods of cold water are possible for any pond. Even if it is rare in your area to get freezing temperatures, all koi pond owners should plan ahead. Be sure to address the key points above and be sure your pond does not freeze into a solid block by providing adequate insulation and that your fish have access to surface oxygen.
What happens to koi when water temperature drops?
So each fall, as water temperatures decrease, fish metabolism slows down , they become less active and their need for food decreases. Most koi owners observe a gradual but noticeable change in their fishes’ behaviour when the water temperature cools, generally below 65°F.
Why is it important to feed koi at different temperatures?
Therefore it is not only important to feed a quality koi food, it is also important to feed the proper amount and type of food depending on the water temperature.
What temperature should I feed my koi?
Feeding Koi in The Summer. Once the water temperature is over 64°F / 18° C most koi owners prefer to switch over to a good summer food because they typically have higher protein levels for increased growth and more colour enhancers for vibrant colours.
How many times should I feed my koi?
At around 64°F / 18°C feed your koi no more than 2 times per day and as the temperature fall cut back to once per day. Once the temperature remains below 48°F / 9°C you should stop feeding altogether.
How long should I leave koi food out?
If their is food left after 5 minutes , remove the food and cut back the amount for the next feeding. Some people like to feed their koi wedges of orange in the spring to give them a treat and also a vitamin C boost! Use the thermometer below to plan your fish feeding.
How cold should water be for koi?
After a long winter, koi owners are often eager to feed their fish as soon as possible, but always wait until the water has warmed up to at least 48°F / 9°C. It is also a good idea to start the pump and filtration system before you begin feeding to allow for proper breakdown of fish waste. Once again, begin feeding a cold water fish food sparingly ...
Can goldfish eat wheat germ?
A proper cold water food will have wheat germ listed as the first ingredient. Koi and goldfish can digest wheat germ very easily, especially in cold water. We recommend gradually transitioning koi onto the cold water food by mixing it with their summer food and then gradually increase the amount. As the temperature falls, gradually cut back ...
