Other Sellers on Amazon
+ Free Shipping
+ Free Shipping
+ Free Shipping
API COPPER TEST KIT 90-Test Aquarium Water Test Kit
Get free shipping
Free 5-8 business-day shipping within the U.S. when you order $25 of eligible items sold or fulfilled by Amazon.
Or get 4-5 business-day shipping on this item for $6.14. (Prices may vary for AK and HI.)Learn more about free shipping
|You Save:||$1.10 (11%)|
- Contains 90 tests
- Measures both free and chelated copper
- Contains color chart, clear instructions and glass tube(s)
Unlock 15% savings on this product when you subscribe to 5 or more products that arrive in the same month. Skip or cancel any time, and shipping is FREE. Learn more
Frequently bought together
Customers who bought this item also bought
Have a question?
Find answers in product info, Q&As, reviews
Please make sure that you are posting in the form of a question.
From the manufacturer
It’s Smart To Be Proactive!
The best way to keep your aquarium clean is to maintain good water quality. This will keep your fish strong and vibrant, as well as preventing disease.
How Do I Maintain A Healthy Environment?
It is important to test your aquarium water weekly to verify good quality in addition to a bi-weekly partial water change of no more than 25% to help reduce toxic buildup, remove debris the filter missed, and replenish the oxygen available to fish.
How Do I Take Good Care Of My Aquarium & Fish?
- Feed & observe fish daily
- Test water quality weekly
- Change 25% water bi-weekly
- Restore your ecosystem monthly
Feed Your Fish Daily
Feed your fish twice daily with API Fish Food which contains nutritionally enhanced proteins, allowing for easy uptake of nutrients and maximum absorption, resulting in less excrement for clear, clean water. Only give the amount of food fish can eat in 2 to 3 minutes depending on the species. Some fish such as bottom feeders and algae eaters will need up to 30 minutes to 2 hours. Take time to observe fish and the water temperature to ensure they are active & healthy.
Feed Fish Daily
Test Water Quality Weekly
Change 25% Water Every 2 Weeks
Restore Your Ecosystem Monthly
|API Master Test Kit||API Stress Zyme||API Algaefix||API Stress Coat||API Quick Start||Melafix|
|Use Weekly||Helps monitor water quality||Keeps aquarium & gravel clean||Keeps aquarium & gravel clean|
|Use Every 2 Weeks||Makes tap water safe when changing water||Restores the ecosystem to help prevent fish stress|
|Use Monthly||Restores the ecosystem to help prevent fish stress|
|Use When Adding New Fish||Prevents disease breakout|
Making A Better Underwater World
At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too. For over 50 years API has developed premium solutions with proven and effective results for your family and ours. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world.
Test reads 0 to 4 mg/L or parts per million (ppm) of copper. Helps to maintain a healthy aquarium or pond for fish by ensuring that copper (a common treatment for many parisitic infections) levels are within the healthy range.
Would you like to tell us about a lower price?
DirectionsTest as needed
Compare to similar items
|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Item Dimensions||1.63 x 2.75 x 5.13 in||4.5 x 4.6 x 2.5 in||1.62 x 2.75 x 5.12 in||3.3 x 3.4 x 0.7 in||1.9 x 4.2 x 5 in||1.63 x 2.75 x 5.13 in|