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API Stress Coat (16 oz)

The dechlorinator that also heals: removes chlorine and neutralises chloramine while adding an aloe-vera slime coat that reduces stress and helps torn fins recover. Not an ammonia detoxifier.

API Stress Coat (16 oz)
93/ 100 T&T score
Ranked 4th of 6 water conditioners
Owner rating4.8★ (38,604)
Best price today$10.98
Tierbudget
Affiliate link · never affects rank
Score breakdown
Effectiveness & Range100
Concentration & Value82
Safety Margin100
Owner Satisfaction94
Value89
What we like
  • +Removes chlorine, neutralises chloramine and binds heavy metals, working the moment it is added
  • +Adds an aloe-vera slime coat that eases stress and helps damaged fins and wounds heal
  • +Long-trusted budget staple — one of the most-reviewed conditioners in the hobby
  • +Shrimp safe and plant safe at label dose, and does not affect pH
Watch out for
  • −No ammonia binding — it will not detox an ammonia or nitrite spike
  • −Less concentrated than Prime — 5 mL treats 10 gallons, so a bottle runs out fast
Specifications
TreatsChlorine, chloramine, heavy metals
Contact TimeInstant
FormulationLiquid with aloe vera
Concentration5 mL per 10 gal
Treats Volume~950 gal per 16 oz
Bottle Size16 oz (473 mL)
Safe ForFish, shrimp, plants
Overdose ToleranceWide
pH ImpactNone
The exact product

This is API Stress Coat, a dechlorinator that also adds an aloe-vera slime coat. It removes chlorine, neutralises chloramine and binds heavy metals instantly, while the aloe eases stress and helps torn fins and wounds recover. It is not an ammonia detoxifier.

Best for
  • Routine water changes plus stress reduction
  • Tanks with fish recovering from handling, transport or minor fin damage
  • Beginners who want a trusted, widely stocked conditioner
Not for
  • Ammonia emergencies, since it does not bind ammonia
  • Keepers who want the lowest cost per gallon, where Safe or API Tap win
  • Anyone who dislikes a slime-coat additive
What we can and can't verify

We separate what the maker claims from what independent sources confirm, what owners report, and where we are drawing an inference. We do not bench-test products.

The manufacturer states
  • Removes chlorine and chloramine, binds heavy metals, works instantly
  • Adds an aloe-vera slime coat that eases stress
  • 5 mL per 10 gallons; shrimp and plant safe; no pH impact
Independently verifiable
  • It does not detoxify ammonia
  • Less concentrated than Prime, so a bottle runs out faster
Owners consistently report
  • One of the most-reviewed conditioners in the hobby
Our reading of the evidence
  • The dechlorinator-plus-slime-coat pick: handy after handling or transport, though the aloe additive is a preference and it will not detox ammonia
What it costs to own

Inexpensive but less concentrated at 5 mL per 10 gallons, so a bottle runs out faster than Prime. Useful to keep on hand for new arrivals and minor fin damage.

How it fails, and what to watch
  • Assuming it detoxifies ammonia, which it does not
  • Running out faster due to lower concentration
  • Relying on the slime coat as a treatment for illness, which it is not
Limits of this review

We do not lab-test the chemistry; we relay the manufacturer's stated figures. We give gear and method guidance only, not livestock or disease advice; route fish-health questions to a veterinarian or an established authority. For a serious ammonia emergency or a sick tank, consult a veterinarian or an established authority alongside conditioning the water.

Common questions
Does the aloe actually help fins heal?

The maker states the aloe-vera slime coat eases stress and supports recovery of torn fins and wounds. For active disease, consult a vet or an established authority rather than relying on a conditioner.

Does it remove ammonia?

No. It handles chlorine, chloramine and metals. For ammonia detox use Prime, Safe or Fritz Complete.

How much do I use?

5 mL per 10 gallons, dosed to the new water on a change.