Search  for anything...
API

API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle

  • Based on 23,403 reviews
Condition: New
Checking for the best price...
$18.48 Why this price?

Buy Now, Pay Later

As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: 18 left in stock
Fulfilled by Champion Lighting and Supply Co.
Arrives Oct 6 – Oct 8
Order within 21 hours and 47 minutes
Available payment plans shown during checkout

Recently Viewed

Size: 16 oz


Style: Aquarium Treatment


Features

  • Contains one (1) API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle
  • Makes tap water safe and protects fish with dual-action formula
  • Removes chemicals from tap water that are harmful to fish
  • Replaces fishs protective coat damaged by handling or fish fighting with healing power of Aloe Vera extract
  • Use when adding or changing water, when adding new fish and when fish are sick or injured

Description

Treat your tap water, and provide a safe environment for freshwater fish instantly and easily with API STRESS COAT Freshwater Aquarium Water Conditioner. Tap water contains chlorine, chloramines and ammonia which can cause gill and tissue damage, breathing difficulty, stress and death. API STRESS COAT Aquarium Water Conditioner works instantly as a water conditioner to remove chlorine and chloramines from tap water and neutralize heavy metals. API STRESS COAT Freshwater Aquarium Water Conditioner Treatment contains aloe vera, and it is scientifically proven to reduce fish stress by 40% and heal damaged fish tissue. This conditioner replaces the natural secretion of slime that is interrupted by handling, shipping, fish fighting, or other forms of stress and helps heal torn fins and skin wounds while promoting tissue regeneration. API STRESS COAT is recommended by professional fish handlers. With API aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For almost 60 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. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too.

Brand: API


Liquid Volume: 473 Milliliters


Item Weight: 0.4 Pounds


Item Form: Liquid


Target Species: Fish


Is Discontinued By Manufacturer ‏ : ‎ Yes


Product Dimensions ‏ : ‎ 5 x 1 x 5 inches; 6.4 ounces


Item model number ‏ : ‎ 85C


Date First Available ‏ : ‎ June 15, 2004


Manufacturer ‏ : ‎ Mars Fishcare


Best Sellers Rank: #605 in Pet Supplies (See Top 100 in Pet Supplies) #1 in Aquarium Water Treatments


#1 in Aquarium Water Treatments:


Customer Reviews: 4.8 4.8 out of 5 stars 23,403 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 6 – Oct 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Magic in a Bottle for Your Aquarium!
Size: 16 oz Style: Aquarium Treatment
Having a home aquarium can be a tricky endeavor, especially when it comes to maintaining a healthy environment for your fish. This product has been a game changer for me. Firstly, the 16-ounce size is very economical. It lasts quite a while even with regular use, which is great for someone who doesn’t want to constantly repurchase supplies. The application process is straightforward and easy – just follow the instructions on the bottle. The most impressive part is its effectiveness. Since using this conditioner, I’ve noticed that my fish are visibly healthier and more active. Their colors are more vibrant, and they seem less stressed, especially after water changes or when introducing new fish to the tank. The product claims to reduce fish stress by 40% and it really seems to live up to that promise. Another major benefit is how it treats tap water. The conditioner neutralizes chlorine, chloramines, and heavy metals present in tap water, making it safer for the aquarium. This is crucial for the wellbeing of the fish and helps maintain a balanced ecosystem in the tank. Overall, I highly recommend the API STRESS COAT Aquarium Water Conditioner to any aquarium enthusiast. Whether you’re a beginner or an experienced fishkeeper, this product is a must-have in your aquarium care toolkit. It’s a small investment for the huge benefit it brings to the health and happiness of your aquatic pets. ... show more
Reviewed in the United States on January 18, 2024 by Tye
    • My GLo Fish are very happy and thrieving
Size: 16 oz Style: Aquarium Treatment
Review Image by Roberto Roberto
I can speak for myself I definitely recommend this product, its very easy to use and works. My Glo fish tank, and my shrimp tank is doing very well and they seem to be thriving. Always remember to prepare your tank with enough time before adding your fish or pets in the water. This is good specially for beginners starter tank. It removes chlorine and haves aloe to heal your fellow swimmers. I treat it as a spa healing day specially in water change days. ... show more
Reviewed in the United States on January 24, 2024 by Roberto Roberto
    • Great Product
Size: 16 oz Style: Aquarium Treatment
I use Stress Coat+ with every water change. It helps retain the slime coat and has healing Aloe Vera in it. It also removes Chlorine from the water. Great product.
Reviewed in the United States on February 11, 2024 by Amazon Customer
    • good price
Size: 16 oz Style: Aquarium Treatment
better than big box stores by a bit
Reviewed in the United States on January 21, 2024 by francotirador333
    • Works great
Size: 16 oz Style: Aquarium Treatment
I use this for the water used for my plants! Takes all the minerals out that could be tough for your plants.
Reviewed in the United States on September 9, 2023 by Christina Arista
    • All API products are good. Stress Coat is a miracle medicine.
Size: 16 oz Style: Aquarium Treatment
I add API Stress Coat to all new water before it goes into my aquarium. I also add a enough hot water to make it the same temperature as the aquarium. Add an extra dose when add fish. Add an extra dose whenever fish appear ill or stressed. It truly is an first-resort, miracle medicine for fish. THE FOLLOWING REVIEWS ARE FOR ALL OF MY AQUATIC PURCHASES. I always read two dozen or more User Reviews for any product I buy. Amazon is honest and prints both the good and the bad reviews. I bought the following products from Amazon: >*****> Hagen Marina Ecoscaper Hydrocotyle Silk Plant. I am really pleased with this plant. And the fish like it too . . . no rough edges. It is just as pictured and looks so realistic. >*****> Hagen Exo Terra Water PLANT, Duckweed. It looks and floats just like real duckweed ! I showed it to the aquatics people at Petco and they were impressed. >*****> Hydor Theo Submersible Aquarium HEATER 25W UL. Very small and easy to adjust; plus it can be placed completely underwater in any position: vertical, horizontal, or on an angle. >*****> Hagen Elite Underwater Mini FILTER for up to 3 gallon tank. >*****> Hagen Elite Mini Internal FOAM 5 PACK replacement sponges. This is an excellent filter for my 5 gallon tank. It is well-made and powerful and could filter a 10 gallon tank. To reduce the water current to make it easy on my fish, I TOOK THE ADVICE FROM A USER REVIEW and bought a 5-pack of replacement sponge filters and used one sponge to completely cover the outflow valve. I also put a wee bit of the foam filter in the Venturi diffuser aerator. I set the aerator to low, which still provides ample aeration. I set the green filter power dial on the side of the filter to low to be just enough to create a good supply of aerating bubbles. I operated the aquarium for over a month without fish so that the water would be biologically perfect for them. Petco checks water samples for free. That little $9 dollar bio filter is just a wonder and so easy to maintain. Unplug the filter and remove it from the aquarium, then syphon off some aquarium water ( never use tap water) and squeeze the foam sponge in clean aquarium water three times or more until the final wash water is almost clear, then replace the sponge in the filter. I now have 5 Von Rio "Flame" Tetras doing very well in their new home. They do best when in a group of 5 or more, and in a low light environment, so I must have low-light live plants. I have a well-planted 5 gallon corner-type aquarium with a lid just for these 5 beautiful and hardy little orange fish. To provide shelter, there are lots of live Java ferns and wisteria plants at each end, plus the hydrocotyle silk plant to hide the filter and heater, and the plastic floating duckweed to provide shelter from above. I purchased the silk hydrocotyle and plastic duckweed, because these live plants would perish in low light. Fish, like all living creatures, need shelter from real or perceived threats. Stress is the cause of most of life's mental and physical illnesses. For many years, I have purchased almost every type of product from Amazon and never had a problem. Products are as advertised, or better, and Super Saver Shipping is fast and dependable. I recommended all of the above products to my friends. I tell everyone to save money and buy through Amazon ( including the aquatics people at Petco ). // ... show more
Reviewed in the United States on December 15, 2012 by Miss Paula from South Beach, Miami, Florida
    • It just works!
Size: 16 oz Style: Aquarium Treatment
This is my go to water condioner and it always does a good job!
Reviewed in the United States on February 17, 2024 by Colton Sanchez
    • Fish agree with
Size: 16 oz Style: Aquarium Treatment
Fish appear to swim better when added to water
Reviewed in the United States on February 24, 2024 by Tommie MORRIS

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...