This article was co-authored by Doug Ludemann and writer Dan Hickey. Doug Ludemann is the owner and operator of Fish Geeks, LLC, an aquarium service company located in Minneapolis, Minnesota. Doug has worked in the aquarium and fish conservation industry for over 20 years, including working as an aquarium professional at the Minnesota Zoo and the Shedd Aquarium in Chicago. He received a bachelor’s degree in ecology, evolution and behavior from the University of Minnesota.
How To Keep Algae Out Of Fish Pond
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So You Want To Put In A Koi Pond!
There are many methods and products for removing algae from your pool, but which ones are safe for the fish swimming below? Algae killers have harsh chemicals that you want to avoid, but luckily there are a number of safe ways to clear algae. We have compiled a list of effective ways to remove small algae from your pond without harming your fish, as well as preventative ways to remove algae. When you’re ready to clean your tank, read on!
This article was co-authored by Doug Ludemann and writer Dan Hickey. Doug Ludemann is the owner and operator of Fish Geeks, LLC, an aquarium service company located in Minneapolis, Minnesota. Doug has worked in the aquarium and fish conservation industry for over 20 years, including working as an aquarium professional at the Minnesota Zoo and the Shedd Aquarium in Chicago. He received a bachelor’s degree in ecology, evolution and behavior from the University of Minnesota. This article has been viewed 21,865 times. Although pond algae tend to be inactive during the colder months, both filamentous algae and individual algae sometimes overwinter.
Fortunately, there are simple steps you can take to fight back—if you decide to take action.
Aquatic algae often have difficulty growing in cold weather. The food needed to survive – often made from organic materials such as fish waste and fishmeal – is in short supply. The water is cold. And the snow blocks the sun, which wants to unite.
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Similarly, air does not heat water. Shallow water warms up quickly on a winter’s day, while deep water maintains a constant – and warm – temperature, even when it’s very cold.
The mysterious way water reacts to temperature can make your pool hot enough to support algae growth.
Algae are being eaten away in your water. For algae only (green water) the main food is nitrite. Algae’s main food is nitrate.
In the warmer months, two types of algae are especially hungry. Beneficial bacteria will consume the nitrites before single-celled algae have a chance to absorb them and plants consume the nitrites.
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In the winter, your plants are dormant and the bacteria are not as active as they are in the summer. This means that any organic matter that enters your tank has a higher chance of becoming algae food.
A thick blanket of snow prevents the sun from touching your water. Accumsan no snow shines.
Algae are opportunistic little things, so they take advantage of any sunlight.
So you need to bring winter weeds. Don’t be afraid. Defining the problem is easy – if you think there is a problem at all.
Algae: Let’s Get Rid Of The Scum
Algae are generally harmless to your fish or plants. This is true whether it is displayed in the heat of summer or the dryness of winter.
Algae can also benefit your tank by giving your fish something to eat on hot days and by adding much-needed oxygen to the water.
However, leaving the algae alone tends to handle the winter movement well. When the mercury rises, your algae and bacteria fighting plants will get back to work.
Aquatic algae generally fall into one of two categories: filamentous algae and unicellular algae. Single-celled algae are the microscopic material that turns your water into green soup. Wood algae are the stringy gun that clings to your rocks and waterfalls.
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If you have the latter, you can treat it using an algaecide or similar product. If you don’t have it on hand, you can get it from us.
An algaecide is a powder that you spray on weeds to kill them instantly. He dies, and throwing away your stones, he will easily pull you out of the pool.
Remember: Dead algae become food for new algae, so you need to remove a lot of debris from the pool after treatment. Using an algaecide will not prevent new algae from growing, so make sure you add enough plants to your pond to absorb nutrients from your algae feeding water.
One last note about algaecide: Treat algaecide differently than aquatic algaecide. Most aquatic algaecides do not work in cold water and we do not recommend them during the warmer months.
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Add regular doses of cold water beneficial bacteria to keep your water healthy for your fish and help break down waste. These bacteria are specially designed to work when the water is too cold for the bacteria to survive.
Aerate the pool. The best way to do this is to add an aerator. Running water – if you want to have yours turned on at the right time – can also help.
The pool should not be full of ice. While the blower keeps the hole open in the winter, you can also add a deicer for added protection. If the pool is frozen, pour a bowl of hot water over it or place it on top of the ice to slowly thaw the gas exchange hole.
Fish will not eat if the water temperature is below 55 degrees. Fish go into a sleepless state called torpor during the cold months. Any food you add to cold water, or do not eat in your stomach, or bad fish, or sink to the bottom of the pool, the quality of the water is bad.
Keeping Your Pond Clear, Clean And Healthy
Most winter snow problems will work. If you’re still suffering from green water or string algae in late summer, however, you should take some precautions.
Seasonal algae control starts with adding more plants to your tank and regular doses of beneficial bacteria. If nothing seems to work, you need to update your filter. When you mix fish with water and sun, algae is more reliable. Most of the problems with algae are that people don’t want to look and it doesn’t affect the health of the fish. Learn how to remove algae from a pond without harming fish in quick and easy steps.
Please complete the first step before I continue! There are different ways to remove algae depending on the species present in your pool!
WARNING: DO NOT just pour the algaecide in! This can cause serious problems for your fish and only temporarily solve the problem!
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The best way to get rid of green algae is with UV light. This will zap the suspended algae all the time and not harm your fish in any way. When you start to reverse, your pool will go from green to brown or gray. This is caused by the suspension of dead algae. You can add a sieve or other coarse material to help remove dead algae quickly, but it will settle over time. Do not use “cleaners” that can kill fish and algae. Once a year you need to replace the UV bulb to keep it working properly.
You won’t see this answer, but you get a rake! So the best way to remove algae is manual removal. Make sure you use the same plastic as the rubber liner for your tank. Concrete feed? You can use a heavy shovel. It is recommended to combine this with a UV bulb and barley straw to prevent string algae from getting worse.
Sorry folks, but it’s the same as above, get a rake. Manual removal is the best option for this type of algae. Not your bag? Call the company’s reliable support or they will drop the next child $20.
The best way to control an algae problem is to remove the food. Phosphates are usually present in your water source and there is not much you can do about it. Nitrates are the last part of your nitrogen, so if you feed a lot of fish or a high protein diet, you can raise your nitrates. Here’s some information on feeding your koi to make sure you don’t make the algae problem worse. And the protein in the food, as much as the diet could provide. Learn how to feed your koi here.
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Lots of sun and lots of seaweed. If possible, add sunscreen or an umbrella
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