Seachem StressGuard Slime Coat Protection 4 L - Stress & Ammonia

Our review of Seachem StressGuard finds it best suited to hobbyists who handle, transport, or treat fish and want a product that both reduces stress and helps wounds heal. The single biggest reason to choose StressGuard is its colloidal protein active that binds to exposed tissue to deliver disinfectant and promote healing while also reducing ammonia toxicity; that combination makes it practical for routine water changes, shipping, and post-handling recovery. It reads as a lab-backed, aquarium-safe option with clear dosing guidance and a neutral pH that keeps reef and planted tanks safe.

Key Features

• Slime coat protection: Provides an immediate protective layer that helps reduce stress and shields fish during handling or transport.
• Wound healing support: The product binds to exposed protein in wounds and helps reduce the chance of primary and secondary infections.
• Targeted treatment action: A colloidal protein active quickly seeks out abrasions to attach and deliver the disinfectant where it is needed most.
• Simple dosing: Recommended at 1/21 capful (5-10 mL) per 80 L (20 US gallons) every 24 hours until recovery, with the option to double a dose safely if required.
• Tank-safe chemistry: With a pH of 7.0, StressGuard will not alter aquarium pH even at larger doses, making it safe for reefs and planted tanks with invertebrates.

Who It's For

Seachem StressGuard is ideal for freshwater and marine hobbyists who routinely handle fish, perform frequent water changes, move fish between tanks, or receive shipments. Its protective colloidal action and wound-binding properties are specifically helpful for breeders, retailers, and aquarists managing delicate or recently medicated fish.

Those who should look elsewhere include aquarists seeking broad-spectrum medications for advanced bacterial diseases, or users who need specific antibiotic or antifungal agents; StressGuard is a protective and healing support product rather than a standalone antibiotic treatment.

Pros & Cons

Pros

• Effectively reduces stress and helps protect slime coat during handling and transport.
• Promotes wound healing by binding to exposed proteins and delivering the disinfectant locally.
• Neutral pH makes it safe for reefs and planted tanks containing invertebrates.
• Economical dosing and reports of long lifespan make it good value for money.

Cons

• Some users report the water develops a slight tint, so visual clarity may change briefly.
• Not a replacement for specific antibiotic or antifungal therapies when those are required.

Specifications

Product	StressGuard Slime Coat Protection
Volume	4 L
Primary action	Slime coat protection, wound binding and healing
Dosing	1/21 capful (5-10 mL) per 80 L (20 US gal) every 24 hours; may double dose
pH	7.0 (will not alter aquarium pH)
Uses	Handling, transport, ammonia toxicity reduction, wound care

Our Verdict

Seachem StressGuard is a practical, science-backed support product for aquarists who need to reduce handling stress and promote wound healing without altering tank chemistry. It delivers targeted protection and good value for routine use, though serious infections may still require dedicated medications.

Frequently Asked Questions

Can I use StressGuard in a reef tank?
Yes. Its pH of 7.0 means it will not change aquarium pH, so it is safe for reef and planted setups containing invertebrates.

How often should I dose during recovery?
Use 5-10 mL per 80 L (20 US gal) every 24 hours until signs of stress abate or healing is complete; a single dose may be doubled if needed.

Will it treat bacterial infections?
StressGuard promotes healing and delivers disinfectant to exposed protein, but it is not a substitute for specific antibiotics when treating established bacterial disease.