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Aquarium Pharmaceuticals (API)

API Freshwater Master Test Kit: pH, High Range pH, Ammonia (NH3), Nitrite (NO2) & Nitrate (NO3)

API Freshwater Master Test Kit: pH, High Range pH, Ammonia (NH3), Nitrite (NO2) & Nitrate (NO3)

Regular price $49.99
Regular price Sale price $49.99
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The liquid reagent kit most koi keepers end up owning. Five tests in one waterproof box: pH, high range pH, ammonia (NH3), nitrite (NO2) and nitrate (NO3) — the full nitrogen cycle plus both pH ranges, which matters because established koi ponds often sit above the standard scale. Over 800 tests, with glass test tubes, riveted color cards and a color wallchart.

Liquid reagents take a few minutes longer than strips and are considerably more accurate, which is what you want when a reading is going to decide whether you dose the whole pond.

One gap worth knowing before you buy: this kit does not test carbonate hardness (KH). KH is what anchors pH in a koi pond, and koi ponds consume it continuously — when it runs out, pH stops being held steady and swings hard overnight. Everything else you need is in this box; for KH, pair it with the API GH & KH Test Kit.

Rated 4.8 out of 5 from 213 Google reviews

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!

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What Koi Keepers Say After Delivery

4.8 out of 5 stars on Google
Excellent
Based on 213 reviews
Reviews from Google

Read all 213 reviews on Google