It is frustrating when your beautiful garden pond become a murky green from algae. This is a guide about controlling algae in a pond.
I used copper sulfate for algae control in my pond. I ended up killing all my koi. Is there any way to get the copper to dissipate or do I need to drain my pond to reintroduce koi?
Not that I know everything about koi, Andrea, but if the copper sulfate killed them, chances are pretty good it'll kill more of them. Clean your tank and start fresh, would be my advice. However, why not consult a professional? Perhaps someone at the place where you bought the fish and the copper sulfate?
I'd change the water, and flush the pond as well.
Will it help if I have certain types of stones like lime and sandstone in the pond? What would happen if I used salt water rather than regular city water to fill the pond? Please help!
First off, I applaud your intention to control algae without chemicals. It is not necessarily the easiest or most convenient fix, but most chemical solutions are only a temporary cure for the problem anyway.
There are several ways to keep algae under control in your pond without using chemicals. The key is finding which combinations of biological and physical components work best to keep your pond in balance. It may also take some time and patience to figure that out. It is not clear to me from your question whether your pond is stocked with fish, so disregard any of the following strategies that do not apply to your situation.
Also, don't be afraid to approach and compliment the successful pond owners you see. They'll probably be more than happy to share their secrets with you.
Plants, Floaters and Potted
Plants will soak up all those nutrients floating in the water that the algae also use to grow. The more plants you have the less nutrients in the water and no algae.
I use an algae control product in my pond that is very natural and easy to apply. It is environmentally friendly, safe on fish, pets, humans and plants. You can even swim in the pond.
Have them give you a free quote. I'm sure it will not cost much considering it is a very small pond!
Excellent post to peruse and helpful tips to used. koi fish is more fragile than other fish and delicate as well/For its survival, just Pondpro2000 is a liner which can be used safely.
Is there a recipe for vinegar to use in backyard ponds with fish? The pond has algae on top. I want to kill the algae without killing fish. The algae is taking the oxygen away from the fish. Please help.
By Shirley from Little Rock, AR
I've seen products for sale called barley straw balls, which is supposed to deter the formation of the algae, so I would think you could try wheat or oat straw, if that's more readily available to you, but you should try to give it some sort of floating assistance, like tie on a sealed empty plastic bottle.
BTW, vinegar will change the pH of the water and could easily kill your fish.
I use a product called AlgaeFix. It is safe for fish & plants, I have aprroximately 25 fish in my pond & lots of plants & have never had an issues. It works very well.
I have a 7000 gallon fish pond with more than 70 Koi fish. I am faced with the problem of algae, and it is spreading very quickly. The walls of the fishpond are marble. One man advised me to put salt into the fish pond to control the algae. Is that true? Algaecide for fish ponds is very difficult to buy, and could not be found. How can I control the algae without damage to the fish?
By Soe from Yangon, Myanmar
I have read that putting sterile carp in a fish pond will take care of algae. I dont think i would use salt tho. I put two in my pond I have on the farm where I live and it worked. No more algae. Go to a farm supply store and order one. I think one should do it. Hope this helps.
It's certainly a good idea to know how to get rid of the algae in your pond, but nothing beats designing for a good healthy ecosystem with the right combination of plants! Koi are tough on plants, but there are ways to protect the plants so they can take up the nutrients and compete with the algae.
...A pond without fish is like...well...the air without birds!
I have been using an algae control system product that I found to work VERY well. It is safe fish and you can even swim while using the treatment. I would check out this site for more information!
How can we balance our goldfish pond water with household products? We are thinking of products like baking soda, vinegar, muriatic acid, etc. We have a 6 foot x 27 foot pond. It is 1.5 feet deep at the shallow area with a 3 foot deep area. We have few water plants and full sun light. There is a homemade 30 gal. sand and gravel filter with a 3 foot to 4 foot long steam. From what we have read we have blooming algae (green water).
By Billy M. from T Town, AL
Get a UV light sterilizer, it will break up the algae. The water is run through the unit in which there is a UV light. It is perfectly safe for plants and fish, I run mine after my filther and pump and it works great, You can purchase a good unit for about $100.
Barley straw and barley straw liquid can be used. It will also go away on its own, If you go online there are many things to buy.
My pond holds approx. 2000 lt. It has algae growing on the plants and fish in the pond. How can I safely get rid of the algae?
The best and safest to use is Sterile Carp Fish. I ordered mine from a feed store. In no time the algae will be gone. I have used so many products that didn't work at all. My pond is fairly big so I put in 3 of these fish. Oh one more thing, they are really reasonable in price. Hope this helps.
I moved into a new home and there is a 50 gallon pond in the front yard by front door! It has green algae along the walls. I bought a $50 filter and pump at Lowe's and it doesn't do the job. I have bought stuff to put in the water which also does not seem to help.