Nancy Guntly
Always a pleasure to go to Champion Nishikigoi to pick up koi food for our koi pond. The staff is friendly and helpful. They always load the heavy bags of koi food in my car.
Tetra
TetraPond AlgaeControl: Pond Algaecide for Green Water & String Algae
TetraPond AlgaeControl: Pond Algaecide for Green Water & String Algae
Regular price
$18.99
Regular price
Sale price
$18.99
Shipping calculated at checkout.
TetraPond® AlgaeControl™ is an EPA-registered pond algaecide for the algae that filtration alone will not fix.
What it controls
- Green water blooms (Chlorella, Selenastrum)
- String and hair algae (Spirogyra)
- Blanketweed (Oedogonium)
- Blue-green algae (Oscillatoria)
- Diatoms / brown algae (Synedra)
Active ingredient: poly(oxyethylene(dimethyliminio)ethylene(dimethyliminio)ethylene dichloride) 5.4% — a polymeric quaternary algaecide, not a copper product.
Dosage
- 10 mL per 120 gallons, or a quarter cup (60 mL) per 720 gallons.
- May be repeated every three days, up to three doses, then leave a week between treatment cycles.
- 16.9 oz treats 6,000 gallons · 33.8 oz treats 12,000 gallons.
Read this before you dose
- Keep pumps and aeration running 24 hours a day during treatment, especially in warm weather. Dying algae consumes oxygen as it breaks down, and warm water holds less of it to begin with. This is the single most common way an algaecide kills fish.
- Do not use in ponds containing invertebrates or crustaceans — crabs, shrimp or crayfish.
- Safe with ornamental freshwater fish and plants when used as directed.
- Treat the underlying cause too. Algae is usually a nutrient problem; an algaecide buys you time, it does not fix the pond.
Why buy from ChampKoi?
ChampKoi has kept koi healthy from our San Jose, California facility since 1998. Tell us what your algae looks like and how your pond is stocked and we'll tell you whether an algaecide is even the right tool.
Ordering Information
Ordering Information
At Champion Nishikigoi, we’ve streamlined the order process for a smooth experience with koi fish, food, and pond equipment.
Koi Fish Orders:
After placing a koi fish order, we confirm availability and health, reserve your koi, and prepare it for pickup or shipping. If issues arise, we’ll reach out to discuss options.
Product Orders (Food & Equipment):
For supplies, we gather your items and notify you for pickup. If anything is out of stock, we’ll discuss alternatives.
Pickup & Shipping:
• Local Pickup: Available Tuesday to Sunday, 10 am to 5 pm.
• Shipping: We offer expedited shipping for koi with health checks and tracking for safe arrival.
For complete details, click here.
Refund Policy
Refund Policy
Live Fish:
- Returns: Live fish cannot be returned after delivery.
- 14-Day Live Arrival & Health Guarantee: Your fish is covered by our 14-Day Live Arrival & Health Guarantee. If a fish arrives dead, or is lost to shipping stress or a health problem within 14 days of delivery, you choose a replacement, store credit, or a refund of the fish's price.
- Claim deadlines: Report a fish that arrives dead within 2 hours of the recorded delivery time, with a photo and your order number, so please be home for delivery. Report later losses within 14 days of delivery, with photos, a short video, your order details, and water readings. Email champkoi@champkoi.com.
- Not covered: Improper acclimation, poor water quality, injury, predation, fish jumping out, negligence, and treatments applied without our guidance.
Non-Returnable Items:
- Chemicals, medications, water conditioners, and pond liners cannot be returned due to safety and quality reasons.
General Merchandise Returns:
- If you're not completely satisfied, you may return items within 14 days, subject to a 15% restocking fee. Note: shipping and handling costs are non-refundable.
- Items on sale or special deals, as well as special order items, cannot be returned.
- To ensure a smooth return:
- Items must be in unused, resellable condition.
- Original packaging, warranty books, manuals, parts, and accessories must be intact.
- For shipping, please encase the original packaging in another carton to prevent damage.
Return Process:
- Prior to returning any items, please obtain a Return Goods Authorization number (RGA) by contacting us. Have your invoice ready for reference.
- After inspection, we'll confirm acceptance of the returned merchandise.
Return Shipping:
- Customers cover return freight costs. If we made an error or the item is defective, we'll handle the freight charges.
- For orders with free shipping, the actual outgoing freight charge will be borne by the customer.
We're always here to help. Please reach out if you have any questions or concerns!
Learn more
- Koi Pond Water Treatments and Medications: A Practical Guide The numbers to hold, and what to reach for when they slip.
- Koi Pond Filter and Filtration Buyer's Guide: Staging, Sizing and What to Buy Why you halve the gallon rating, and how to tell yours is falling behind.
- Koi Pond Supplies: What You Actually Need for a Backyard Koi Pond The full build, in the order you buy it, with real costs.
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What Koi Keepers Say After Delivery
4.8 out of 5 stars on Google
Excellent
Based on 212 reviews
Reviews from Google
- Dekun Wang
I live in Long Island New York. I’ve been buying from Champion for many years and the quality of the koi has always been exceptional and better each year. I have no problem relying on Champion from across the country as my reliable supplier.
- Rohan Ramnarine
Beautiful fish. Arrived on the date requested, well packaged and healthy.
- CyndiRick Nicholson
Always positive and professional they treat you like family always answer your questions and gove you good solutions
- Gus Ho
I can easily find the food I need and the price is super competitive .. 👍👍
- Noah Twitchell
Excellent selection of high-quality imported Japanese koi. Everyone at the shop is friendly, knowledgeable, and patient, which makes the experience even better. The owner, Tom, is highly respected among serious koi enthusiasts across the country, and for good reason. His expertise and dedication to the hobby are evident in the quality of the fish and the service provided. Highly recommend!
- Ivy Rittenhouse
This company is my go to for Koi; I am very pleased with the beauty of their Koi and the delivery. They all have come in healthy and ready to eat.
- Tony Ngo
We have been shopping at Champion Koi for over 20 years and have had a wonderful experience as local customers with Tom and his family. We highly recommend purchasing from Champion Koi, as you can do so with 100% confidence in receiving the best support and quality products. It is especially worth mentioning their super friendly staff!
- Ryan Quint
Ordered some supplies and koi from their website thankyou
- Maytham Hadratey
Great fish fast shipping and great packaging
Tom is very nice person and very friendly and I wold love to buy more fish from him.
Over all Champion Nishikigoi is a wonderful company and very trustworthy. - Mechelle Vierra
Always nice & friendly beautiful Koi fish 🐟
- Morgan French
These koi are so beautiful even more beautiful than the photos and videos if you can believe it! Big, thick healthy koi! I'm so please with every koi I've purchased!
- Eric O
My review comes with a bad experience turned immensely positive by the hard working staff at Champion Nishikigoi. I had spent a number of weeks debating on, and finally ordering a Showa upwards of 1k as the jewel of my collection. After purchasing the fish, I was notified that the fish was not in the pond and that it was possible that it was purchased in person earlier that day or that the listing had been updated without the initial listing having been removed. This was extremely disappointing to me. However, the team at Champion Koi personally reached out and the owner made recommendations for replacement. They provided me with a discount on the replacement fish, but more importantly, they actually listened to my concerns and my dismay at the experience. Champion Koi made real observable change as a response updating their website to include a warning about this very rare occurrence and making a guarantee of a 10% credit for anyone who would have a similar experience. It is extremely rare to find a business that cares enough to make actual change based on a customer experience and show that they actually care about their customers. They have certainly earned my business and they should definitely have yours!
- c'yanna Thornton
Noy was extremely helpful and eliminated all my concerns/worries about ordering online considering I don't live close(Ohio). My gorgeous fish came looking exactly what I was expecting exceeding expectations! I'll definitely be ordering again.
- Harry Fayter
Very nice place. If you want koi fish they have them. Tom and the gang are super nice and very helpful. Thank you and see you soon.
