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🐠 Transform your tank into a stress-free sanctuary with every drop!
API STRESS COAT Aquarium Water Conditioner (64 fl oz) instantly detoxifies tap water by removing harmful chlorine, chloramines, and heavy metals. Enriched with Aloe Vera, it reduces fish stress by 40% and repairs damaged slime coats, promoting faster healing of fins and skin. Perfect for water changes, new fish introductions, and treating injured fish, this dual-action formula is trusted by professionals and has been a leader in aquarium care for over 50 years.



















| Asin | B000256DIG |
| Best Sellers Rank | #3 in Aquarium Water Treatments |
| Date First Available | June 15, 2004 |
| Department | Unisex-Adult |
| Item Model Number | 85J |
| Manufacturer | Mars Fishcare |
| Product Dimensions | 4.5 x 4.5 x 10.5 inches; 4.9 pounds |
User
Magic in a Bottle for Your Aquarium!
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.
User
Good product
This is very good this is my second time buying this is relliabel and cheap for its price the size is very good, the odor smells like aloe Vera.
User
All API products are good. Stress Coat is a miracle medicine.
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 underwaterin 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 REVIEWand 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 waterthree 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 floatingduckweed 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 ).//
User
Makes water immediately safe for fish
Makes water instantly safe for fish. Comes in strengths different for 5-over 50 gallons a cap full too, so read label before ordering what your needs are. Great product even has aloe vera to protect slime coat
User
Nice product
It looks to work well. I see some bubbles in the water surface after using this product, but it may not be a real issue.
User
Not Just for Fish! Also Great for Plants!
I don't use this for an aquarium. In fact, I don't even have an aquarium. It was recommended by a plant expert to use in the water I use to water my plants. Hard, chlorinated water filed with chemicals is not good at all for plants and while it won't kill most of them, some of them end up unhappy over time.When I first heard about this product, I was skeptical. Could it really help with my plants? Well, upon researching, apparently so! It removes not only chlorine, which is in all tap water, it removes chloramines and heavy metals. They're all bad for fish and bad for plants as well!The price is low and I use just 2 - 3 drops with each gallon of tap water, immediately takes action. No waiting!I bought the 4 ounce size and at this concentrate, that much will last me years (and I have a lot of house plants. There's not much odor, it's clear and a little thicker than water.This is a no-brainer. I'm happy I discovered it.
User
It’s more than for aquariums!
I started using this product in 2024 for my bamboo stalks that are in vases filled with tap water. My bamboos couldn’t be more happier and lovelier ever since! This 1 oz bottle is less than $3 and much cheaper than the similar products for houseplants. The water conditioner for houseplants can also be used for aquariums. So, why pay more when they do the same job?
User
It matter.
This is clearly the best water conditioning company in the whole entire world. They’ve been around for many years. They have literally cracked the code on protecting scales and it matters.
User
Excelente Producto
Es un producto muy bueno para quitar cloro, cloraminas y metales pesados además de quitar el stress de los peces.
User
Useful aquarium water conditioner.
I am pleased with my purchase as it seems to be working very well. This product is a water conditioner and makes tap water safe for aquarium fish removing any harmful chemicals. Also replaces fishes coat if damaged by handling or fish fighting etc.
User
Worth Buying
Works like magic. Keeps my fishes calm.
User
Super producto
Muy buen producto, ayuda en la regeneración de escamas, y en general en la salud de los betas si sufrieron alguna lesión. Super recomendado!
User
It works
For the fish tank
Trustpilot
3 weeks ago
4 days ago