KORDON #31456 Fish Protector for Aquarium, 16-Ounce
$10.99
Price: $10.99
(as of Oct 13, 2025 14:24:39 UTC – Details)
Kordon fish protector. Fish protector is a professional quality water treatment that calms fish, reduces losses, eases stress, minimizes infection and aids healing – thereby helping to protect fishes during handling, illness and transportation. Fish protector detoxifies the free ions of the heavy metals present in public water supplies, such as zinc, iron, lead, copper and arsenic, which can be lethal to fishes and invertebrates.
Is Discontinued By Manufacturer : No
Product Dimensions : 2.75 x 2.75 x 8 inches; 1 Pounds
Item model number : MODEL-31456
Department : Conditioners & Additives
Date First Available : October 2, 2001
Manufacturer : KORDON LLC
ASIN : B00412UDBE
Best Sellers Rank: #53,076 in Pet Supplies (See Top 100 in Pet Supplies) #484 in Aquarium Water Treatments
Customer Reviews: 4.7 4.7 out of 5 stars 421 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); } }); });
ENHANCED HEALING: Adds a multi-layer slime coat, Vitamin B12 & Echinacea to help heal fish with missing scales, frayed fins, and bruises. Additional polymer colloids act as a carrier for medications, making them more effective.
EASES STRESS: Calms fish and eases stress, making it an ideal solution to protect fish and reduce fish loss during handling, illness, new introductions, and shipping.
SAFE & EASY: Safe for freshwater and saltwater fish, invertebrates, corals, live rock, and plants. Use in medication baths, quarantine tanks, or for added protection during handling and shipping.
DETOXIFIES: Removes all toxic heavy metals from the water, such as zinc, iron, lead, copper, and arsenic, which can be lethal to fish and invertebrates.
TRUSTED FORMULATION: Professional quality water treatment used by breeders, wholesalers, and public aquariums. Made in U.S.A., each 16 oz. bottle treats 960 gallons.
Customers say
Customers find the water treatment effective at boosting fish immune systems and healing wounds, while also helping to calm stressed fish. The product receives positive feedback for its value, longevity, and vitamin content, with one customer noting the beneficial combination of B12 and Echinacea. The color aspect receives mixed reviews, with several customers reporting that it makes the water look dirty.
Sid –
Great stuff
The best polymer type “slime coat” product on the market. Binds great to meds, improves healing significantly, great just to toss in in addition to almost any other med. Occasional sore or something is the ideal use case for something like this. Wouldn’t recommend the full amount regularly if you’re an experienced keeper, healthy fish don’t *need* products like this and I imagine you’ll exhaust your chemical filtration more quickly. But still, another great product from the ogs, kordon.
Kirby –
Fast working.
This is amazing! if you add the correct dosage You can hardly see it in the water, If at all. It really does help with the scales. It was very easy to use, and didn’t affect the water quality.
Darby Satterlee –
Good product.
Didn’t work for what I bought it for but didn’t realize I needed some sort of medicine to make this effective. Soo I was using it wrong. Nothing wrong with the product. Looks like it’s good quality. Use error was the issue here ð
M&N –
Good addition to the potion collection
This is a should-have potion for your fishy friends, useful for preventative health care and maintenance. It’s hard to say if it can be proven to do anything, however I seem to notice less stress amongst the fish. Improved slime coat and beneficial vitamins/herbs/etc. are also nice theoretical benefits. Supposedly it’s also particularly useful while shipping or transporting fish because of the de-stressing ability. While not a mandatory purchase, it’s certainly smart to have this on-hand as another weapon in your arsenal to heal sick/injured fish or to just maintain their general health.
Kodee –
A great weekly prevention/maintenance addition.
I like this stuff a lot. Iâm new to the hobby and spend a lot of time in fish forums. This product was talked about a lot. And I knew I wanted to pick some up for water changes and/or stressful moments. I use all seachem products. But their stress product is more like a medication. It has a disinfectant in it. I was wanting something to chill the fish out and have healing properties. A slime coat product. This product fits that bill. So yes I am going to be adding it to every water change or new addition….basically once a week.At the time, my fish I had somehow…well say he bumped his head, ramming it into the gravel trying to get snail food. This healed it right up. And he noticeably calms down. He really does seem very peaceful after I add this. And itâs not temporary. His whole demeanor has changed.I like that this ia slime coat focused. I like the extra vitamins. I feel like a better fish parent because of this product.If ever a time comes that I need to medicate this product will be an obvious additions. It absorbs medications and sticks it on the fish. Itâs just a great product.Itâs a little odd thatâs kordon isnât as popular as it used to be. Iâm glad I found this and was able to buy it.
Jordan Cancanon Abreu –
Exelente
Mis peces lucen mas sanos.siempre añadiendo la cantidad correcta segun los galones de tu acuario
Natalie K Bacher –
Great Product
I use this product bi weekly in all my aquariums. I have noticed a extreme color pop in all my fish and overall just more healthy. So Glad I started using this. I use it bi weekly at half dose because of my plants. Just personal preference.
Christy –
Works almost Immediately
My 6 year-old goldfish will bump the top lid and likes to splash out water to get our attention but looked like it bumped too hard. We thought it would go away so waited a few days and it got worse (1st pic). The redness started in one area and spread to other scales so we were really concerned. Iâve used this Fish Protector before with success so tried again by mixing in as directed and within 2 days itâs almost gone (2nd pic). This stuff really works!!
GILLY G –
Product is reliable and work as described. However the price is high for the amount I am getting but weâll worth it.
andy langley –
Fish look much healthier after using this. Colours are better.