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Your cart is empty. Seachem Pond Prime is a complete conditioner that works to provide essential ions and stimulates natural slime coat in any pond.
For over three decades, Seachem has been a company rooted in sound science. Our experience in the hobby and an educated staff of chemists and biologists are part of the package when you purchase Seachem products. Seachem remains as one of the few surviving independent and privately owned pet care companies. Seachem is owned and operated by hobbyists. All of our employees are hobbyists who maintain aquariums at home and at the office. Seachem itself was started because one such passionate hobbyist - Dr. Leo G. Morin (Founder) - recognized that the available solutions to aquarists problem wanting. This resulted in Seachem’s very first product: Cupraplex (today known as Cupramine). Over thirty years later Seachem is still approaching old problems in a new way.
Seachem’s philosophy is that the knowledgeable hobbyist makes the best customer. This is reflected in solid and reliable customer education and support as well as products proven in science and performance. While Seachem has grown rapidly into a national and international firm, it retains the culture of a small company and is readily available to its customers.
Studio Z
Reviewed in the United States on April 16, 2025
If you are lazy like me but want to protect your koi against toxic water due to insufficient cleaning and filtration, THIS is the cure-all. I have to clean my outdoor filter and and bio filter every 3 to 4 weeks and do not always find the time.Since I started using this product I have not lost a single fish in 6 years. They all made it from 4 inches to 14 inches in perfect health.
RonW
Reviewed in the United States on June 8, 2024
Out outdoor water feature has fish, and it's also extensively used by the birds for water. This product effectively gets the chlorine out of the water when we have to refill the pond, which is a 4' galvanized stock tank. We've used it for years, and out fish have shown NO negative effects from it. It is one of those things we just keep around as a standard part of our water feature, and we wouldn't be without it. I recommend!
JR
Reviewed in the United States on June 16, 2024
Works well.
Janet Weber
Reviewed in the United States on October 6, 2024
Good product
Horse Mom
Reviewed in the United States on October 29, 2024
If you are looking for a great product to treat koi pond water changes I highly recommend this product!
WolfMother
Reviewed in the United Kingdom on May 3, 2023
I knew about Seachem Prime from years ago when I used to have aquariums so when I moved over to pond fish I wondered if there was a pond alterative. Thankfully, there is this Seachem Pond Prime Water Conditioner and I always have some stored safely as part of my pond water maintenance kit. Despite our best efforts to get the delicate balance of water parameters "just right" sometimes there's a change that means there's a spike in Nitrites. I'll do a partial water change (always replacing with rainwater) and will add a dose of Seachem Pond Prime Water Conditioner to help balance things out again. It has never let me down and my fish are thriving! Recently, I had to move my fish into a new pond with a new filter (which had been kickstarted with old filter media from their old pond). The filter wasn't quite up to the full colonisation of friendly bacteria and there was a very minor increase in the nitrite levels. Added a dose of prime, waited for a few hours and re-tested the water. Problem solved and very happy fish. Some rate this stuff (like me), some don't. We all have our different ways of doing things - this works for me so I'll be keeping a supply of this in my kit :)
Connie
Reviewed in the United States on December 15, 2022
I buy a special filter for my hose, however, just in case as a back up for when I need to add water to the pond, I keep this around. A few times the filter didn't work correctly and I could smell ammonia. Follow the directions and you will have things back to normal in no time. As you can see my koi are very happy with their pond.
Customer
Reviewed in Canada on February 10, 2021
I used this in the fish pond and it worked well.
PAULO BRANDT
Reviewed in Brazil on January 14, 2021
Muit bom já conhecia
larry
Reviewed in Canada on July 21, 2020
Product works great
Manuel Kim
Reviewed in Mexico on January 23, 2020
Buena calidad de los productos, es una marca confiable.
Richard C
Reviewed in the United States on June 15, 2019
I have used Pond Prime in the past but the current online vendor I use [WWG] does not carry it. Pond Prime has the advantage of "neutralizing" ammonia as well as removing the chlorine and chloramine from tap water. I get ammonia spikes when my koi spawn so I looked online for another source for Pond Prime so I could use a single product to condition the water rather than getting a second one to deal with the ammonia issue. Went with lowest price vendor and when the product arrived it was missing the front label. Uh oh! Is it counterfeit? Anyone who has ever used Pond Prime would immediately recognize the smell: VERY strong sulfur aroma. This definitely had that and it seemed to work - chlorine level stayed at zero after a partial water change and the ammonia went from over 2ppm to .5ppm in 3 days [test reagents measured ALL ammonia, both NH3 and NH4+].Still, the missing label concerns me and I will be contacting the vendor to see what's up.
Jacq
Reviewed in the United States on August 26, 2014
This product has been a lifesaver (literally!) for my pond. It quickly removes chlorine, chloramine, and detoxifies both ammonia and nitrite without affecting pH. A little goes a LONG way - just remember to shake well before using. I always keep it in stock. I have had several pump/filter malfunctions over the years (usually when I am out of town - go figure!). This product can be used to chemically treat the water in the absence of a working filtration system. This has literally saved me hundreds if not thousands of dollars by keeping my koi alive until repairs could be made. I also throw a small amount in whenever I have to top off the pond (which is often during hot summers). My only complaint is the packaging. It would be nice if the label contained a quick reference chart and built in measurement dispenser. I usually end up writing the dosage I need directly on the bottle with a sharpie and store a small measuring cup on top of the lid.
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