Seachem Stress Guard - Stress Reducer & Antiseptic for Fish

Calm stressed fish and protect them while they heal.

Handling, shipping, water changes, and new tankmates all stress fish — and stress weakens their immunity, opens the door to infection, and slows healing of wounds and abrasions.

Seachem Stress Guard reduces stress and provides antiseptic protection at the same time. Using advanced protein colloids, it forms a soothing protective coating over the fish's body that shields against pathogens and accelerates tissue regeneration, so minor injuries and illnesses recover faster — in fresh and salt water.

Seachem Laboratories has been a chemistry-driven company since 1979, developing its treatments in-house in Madison, Georgia. Stress Guard reflects that science-led approach: a targeted protein-colloid formulation engineered to soothe and protect fish directly, going beyond what an ordinary water conditioner does.

1. Add 1 capful (5 mL) per 40 L (10 US gallons) daily until signs of stress or injury diminish.
2. Dose during water changes and when introducing new fish.
3. Use anytime stress or minor injury occurs.

Protect your fish through stress. Add to cart.

Why Seachem Stress Guard

• Targets stress directly: soothes stressed fish and reduces their vulnerability to infection, going beyond a standard water conditioner.
• Concentrated dosing: a single 5 mL capful treats 40 L (10 US gallons), so daily protection during a stressful stretch uses very little.
• Antiseptic and healing support: advanced protein colloids form a protective coating that guards against secondary infection and accelerates tissue regeneration.
• Works with your system: gentle enough for freshwater and marine aquariums and part of the wider Seachem fish-health range.

Best For

Reducing stress and protecting fish during shipping and acclimation, water changes, quarantine, and recovery from minor wounds or abrasions — in freshwater and marine tanks.

Directions

Add 1 capful (5 mL) per 40 L (10 US gallons) daily until signs of stress or injury diminish. Ideal for use during water changes, when introducing new fish, or anytime stress occurs. Suitable for freshwater and marine aquariums.

FAQ

How much Stress Guard do I use?
Add 1 capful (5 mL) per 40 L (10 US gallons) daily until signs of stress or injury diminish.

When should I use Stress Guard?
Use it during water changes, when introducing new fish, during shipping or acclimation, and anytime a fish is stressed or has a minor wound or abrasion.

Is Stress Guard safe for saltwater tanks?
Yes. It's gentle yet effective and suitable for both freshwater and marine aquariums.