Is API Stress Coat worth it over a plain dechlorinator?

If you want one bottle that dechlorinates and adds a slime coat, yes. If you only need chlorine removal, a basic dechlorinator costs less per gallon.

Does Stress Coat remove ammonia?

No. It neutralizes chlorine and chloramine only. For ammonia or nitrite spikes, use a separate ammonia detoxifier.

How much does the 16 oz bottle treat?

About 960 gallons at the standard dose of 5 ml per 10 gallons. That is roughly 19 to 24 water changes on a 40 to 50 gallon tank.

Can I use it in a saltwater tank?

Yes. API lists Stress Coat for both freshwater and saltwater aquariums.

Is it safe to overdose?

Slight overdosing is generally tolerated, but repeated heavy doses add organics to the water. Stick to the label dose and dose by actual water volume.

When is the best time to buy it?

The 16 oz size is cheapest per gallon, and multi-packs or larger sizes usually beat single bottles. Watch for price dips in spring, when pond and aquarium season starts.

API Stress Coat (16 oz)

Last price we saw

$21.53at Walmart, last seen Oct 31

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Our take on the API Stress Coat (16 oz)

API Stress Coat is a water conditioner for freshwater and saltwater aquariums. It removes chlorine and chloramine from tap water and adds a synthetic slime coat polymer to help fish heal from handling, netting and minor injuries. The 16 oz bottle treats roughly 960 gallons, so it lasts a long time on a normal tank. It is one of the most widely stocked conditioners, and prices on the 16 oz size typically sit in the low-to-mid teens across retailers.

Best forNew tank setups and water changesFish recovering from netting, transport or fin damageKeepers who want one conditioner that also supports slime coat