Seachem StressGuard 500 mL – Aquarium Fish Stress & Wound Care
Seachem StressGuard 500 mL is a premium aquarium fish-care product designed to reduce stress during handling, transport, acclimation, tank maintenance, and other stressful situations. It also helps support the healing of wounds, abrasions, and damaged fins in freshwater and marine aquarium fish.
StressGuard contains protein-active colloids that bind to exposed proteins around injured areas. This creates a protective, liquid-bandage-like coating that helps deliver the product’s antiseptic action directly to affected tissue and reduces the likelihood of primary and secondary infections.
Key Features
- Reduces Fish Stress: Useful during transport, handling, acclimation, netting, and aquarium maintenance
- Supports Wound Healing: Binds to exposed proteins around wounds, abrasions, and damaged fins
- Antiseptic Fish Care: Helps reduce the likelihood of primary and secondary infections
- Freshwater & Marine Use: Suitable for freshwater and saltwater aquarium fish
- Reef, Plant & Invertebrate Safe: Suitable for reef and planted aquariums containing invertebrates when dosed as directed
- Filter Friendly: Does not coat filter media, clog filtration, or significantly interfere with chemical filtration
- Large 500 mL Bottle: Convenient for larger aquariums, multiple tanks, quarantine systems, and regular fish-care use
Product Information
- Brand: Seachem
- Product: StressGuard
- Size: 500 mL
- Equivalent Size: Approximately 17 fl oz
- Product Type: Aquarium fish stress and wound-care product
- Aquarium Type: Freshwater and marine aquariums
- Primary Use: Stress reduction, wound care, and healing support
- Standard Dosage: 2.5–5 mL per 10 gallons daily
Best Used For
- New fish acclimation
- Fish transport and shipping
- After netting or handling
- After aquarium maintenance or water changes
- Minor wounds and abrasions
- Damaged or torn fins
- Quarantine and hospital aquariums
- Fish recovering from aggression
- Freshwater and saltwater aquarium fish
How to Use
Use one-half to one capful, or 2.5–5 mL, of Seachem StressGuard for every 10 US gallons of aquarium water. Dose once every 24 hours until signs of stress have passed or healing is complete.
Seachem states that the dosage may be safely doubled when necessary. Always begin with the standard label dosage unless a higher amount is appropriate for the situation.
Calculate dosage using the aquarium’s actual water volume. Substrate, rocks, driftwood, decorations, and equipment may reduce the amount of water inside the aquarium compared with its listed capacity.
Approximate Dosage Guide
- 5-Gallon Aquarium: Approximately 1.25–2.5 mL daily
- 10-Gallon Aquarium: 2.5–5 mL daily
- 20-Gallon Aquarium: 5–10 mL daily
- 40-Gallon Aquarium: 10–20 mL daily
- 55-Gallon Aquarium: Approximately 13.75–27.5 mL daily
- 75-Gallon Aquarium: Approximately 18.75–37.5 mL daily
- 100-Gallon Aquarium: 25–50 mL daily
These amounts are proportional calculations based on Seachem’s official dosage. Always follow the current instructions printed on the bottle.
How StressGuard Works
StressGuard contains protein-active colloids that seek out exposed proteins around wounds, abrasions, and damaged tissue. The colloids attach to these areas and create a protective coating that acts similarly to a liquid bandage.
This action helps deliver the product’s antiseptic properties directly to injured areas while supporting the fish’s natural healing process. StressGuard does not work by irritating fish or forcing them to produce additional slime.
Using StressGuard with Medications
StressGuard is compatible with most aquarium medications. However, it should not be combined with copper-based treatments, including Seachem Cupramine.
Do not assume every medication combination is appropriate. Read all product labels and confirm compatibility before combining treatments. When uncertain, use a separate hospital aquarium or consult the manufacturer.
Filtration & Equipment
Activated carbon and other chemical filtration media do not have a significant effect on StressGuard, so they generally do not need to be removed during normal use.
StressGuard does not coat filtration resins or clog aquarium filters. It also does not interfere with the regeneration of Seachem Purigen or HyperSorb.
Turn off the protein skimmer when dosing StressGuard in a marine aquarium. Resume skimming according to the manufacturer’s guidance after the product has had time to work.
Fish-Care Tips
- Test ammonia, nitrite, nitrate, pH, and temperature when fish appear stressed
- Use proper acclimation procedures when introducing new fish
- Avoid chasing fish with a net for extended periods
- Maintain stable temperature and water parameters
- Provide sufficient aeration during treatment
- Use a quarantine aquarium for new or injured fish when possible
- Check for aggression, sharp decorations, or equipment that may cause injuries
- Continue regular water changes and aquarium maintenance
Important Aquarium Care Note
Fish stress may be caused by shipping, handling, poor water quality, ammonia, nitrite, aggression, disease, injury, inappropriate tankmates, unstable temperature, or sudden environmental changes. StressGuard may support stressed or injured fish, but the underlying cause should still be identified and corrected.
StressGuard is not a replacement for water testing, filtration, proper acclimation, quarantine, water changes, or medication when a diagnosed disease requires treatment.
Frequently Asked Questions
What is Seachem StressGuard used for?
StressGuard is used to reduce fish stress during transport, handling, acclimation, and maintenance while supporting the healing of wounds, abrasions, and damaged fins.
How much StressGuard should I use?
Use 2.5–5 mL for every 10 US gallons of aquarium water once daily until signs of stress have passed or healing is complete.
How often can StressGuard be dosed?
StressGuard may be dosed every 24 hours when used according to the manufacturer’s directions.
Can StressGuard be used after bringing new fish home?
Yes. It can be used during acclimation and after transport to help reduce stress associated with moving and handling.
Is StressGuard safe for shrimp and snails?
Yes. Seachem states that StressGuard is safe for reef and planted aquariums containing invertebrates when dosed according to the instructions.
Can StressGuard be used in saltwater aquariums?
Yes. StressGuard is suitable for both freshwater and marine aquariums.
Can StressGuard be used with medications?
It is compatible with most medications, but it should not be combined with copper-based medications, including Seachem Cupramine.
Does StressGuard enhance other medications?
StressGuard can be used alongside many compatible medications to support wound care and stress reduction, but it should not be described as making every medication more effective.
Should activated carbon be removed?
No. Seachem states that chemical filtration does not have a significant effect on StressGuard.
Should the protein skimmer be turned off?
Yes. Seachem recommends turning off the protein skimmer while dosing StressGuard in a marine aquarium.
Will StressGuard harm the biological filter?
StressGuard does not coat filter media or clog filtration when used as directed. Continue monitoring ammonia and nitrite whenever fish are stressed or receiving treatment.
Does StressGuard cure fish diseases?
No. StressGuard is an antiseptic fish-care product that supports wound healing and stress reduction. It does not replace medication for diagnosed bacterial, fungal, or parasitic diseases.
Available at Tropical Treasures Wyo
Seachem StressGuard 500 mL is a premium aquarium fish-care product for reducing stress and supporting the healing of wounds, abrasions, and damaged fins. Visit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop Seachem fish-care products, water conditioners, medications, quarantine supplies, test kits, filters, and aquarium care essentials.
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StressGuard is effective for its specific job of wound care and stress reduction in injured or newly introduced fish, particularly for users who need a targeted antiseptic/healing agent.
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