PolyGuard – Seachem
$12.99
- Ships any business day
- Products we use on our own reefs
- Questions? Ask a reef keeper
Share
Product details
Product details
PolyGuard – Seachem is a broad-coverage medication from Seachem formulated to help treat and safeguard aquarium fish against common disease-causing organisms. It is designed for use in both freshwater and marine aquaria, making it a practical option when you need medication support while you work out what’s affecting your fish. Use it to address infections that may involve bacteria, fungi, and parasites, particularly in situations where you are unsure what condition you’re treating or where multiple infections may be present.
Features:
- Broad-coverage medication intended for aquarium fish
- For use in freshwater or marine aquaria
- Formulated to help target bacterial, fungal, and parasitic causes of disease
- Useful when the specific disease is uncertain, or when fish show signs consistent with more than one type of infection
- Contains multiple active compounds working together rather than a single-ingredient treatment
- Active ingredient blend includes both antibacterial components and dyes/compounds commonly used in aquarium therapeutics
Specifications:
- Active ingredients: Sulfathiazole 36%; Malachite green 1.9%; Nitrofurantoin 0.14%; Nitrofurantoin (listed also as nitrofural) 0.14%; Quinacrine dihydrochloride 0.27%
- Inactive ingredients: Excipients 61%




