Seachem ParaGuard
eradicates ectoparasites, bacterial, and viral lesions
safe, efficient and effective
Seachem ParaGuard is the only fish and filter safe aldehyde based (10% by weight) parasite control product available (for parasites on fish). Unlike highly toxic and difficult to use formalin based medications, Seachem ParaGuard contains no formaldehyde or methanol and will not alter pH. Seachem ParaGuard employs a proprietary, synergistic blend of aldehydes, malachite green, and fish protective polymers that effectively and efficiently eradicates many ectoparasites (e.g.











