API MARINE STRESS COAT Saltwater Aquarium Water Conditioner 16-Ounce Bottle
Original price was: $15.48.$10.98Current price is: $10.98.






Price: $15.48 - $10.98
(as of Nov 03, 2025 23:24:15 UTC – Details)
Treat your tap water, and provide a safe environment for saltwater and reef fish instantly and easily with API MARINE STRESS COAT Aquarium Water Conditioner. Tap water contains chlorine, chloramines and ammonia which can cause gill and tissue damage, breathing difficulty, stress and death. MARINE STRESS COAT Aquarium Water Conditioner works instantly as a water conditioner to remove chlorine and chloramines from tap water and neutralize heavy metals. MARINE STRESS COAT Saltwater Aquarium Water Conditioner Treatment is the only marine water conditioner that 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. Because it was developed for use with a protein skimmer, MARINE STRESS COAT Saltwater Aquarium Water Conditioner will not cause foaming. It is also safe for use with reefs and corals. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.
Is Discontinued By Manufacturer : No
Product Dimensions : 5 x 1 x 5 inches; 6.4 ounces
Item model number : 385D
Department : Unisex-Adult
Date First Available : April 8, 2008
Manufacturer : Mars Fishcare
ASIN : B0017JDIUC
Best Sellers Rank: #33,269 in Pet Supplies (See Top 100 in Pet Supplies) #310 in Aquarium Water Treatments
Customer Reviews: 4.7 4.7 out of 5 stars 622 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Contains one (1) API MARINE STRESS COAT Saltwater Aquarium Water Conditioner 16-Ounce Bottle
Removes harmful-to-fish chemicals from tap water to make water safe and protect fish
Contains Aloe Vera to replace fish’s protective coat damaged by handling, shipping or fighting
Designed for use in saltwater and reef aquariums only
Use when adding or changing water, when adding new fish and when fish are sick or injured
Customers say
Customers find this water conditioner effective, with one mentioning it’s highly recommended for both reef and freshwater environments. They appreciate its positive impact on fish health and stress levels, with one noting their aquariums become more lively after use. Customers also like its great price.
8 reviews for API MARINE STRESS COAT Saltwater Aquarium Water Conditioner 16-Ounce Bottle
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Original price was: $15.48.$10.98Current price is: $10.98.
trudy fiterstein –
8 years and still going
helps support life
Blue Herring –
Makes tap water safe for fishes, and safe for house plants too!
One tiny drop in a full watering can and I have water that makes my house plants thrive. Plants are happier, I’m happier, and using one drop at a time is going to make this can last forever.Recommended by Sheffield Made Plants so I tried it, and he was right!
Nicholas Canto –
Saltwater conditioner
Have been using this for years and works great. Will continue to use in the future
Valerie Twinn –
Super ð good keep 2 on hand&get the the Zime
Most petsmart fish come out of Reno Nevada in a dark box for two days during the delivery the store treats them and then another move to your house. No wonder the fish need your help with api stress relief keep temp change equal to store keep fish in bag for 5 minutes to adjust temp if they get ick use the lifeguard all in one treatment or if you need to go cheapest way use Jungle Ick Clear remember to get a quart size cup to desolv
J –
Four Stars
For small QT tanks this is probably effective, but for large tanks it’s probably a waste
Zaakeia B –
This stuff is great!
A necessity for my tank.
Chad K. –
I use it to clean my water for houseplants
A couple of drops in a gallon of water, let sit out for a while, and water plants as usual. My plants are looking much better than when I was using straight tape water
Shipwreck –
Great stuff
Works well, keeps fish healthy