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, ParaGuard� contains no formaldehyde or methanol and will not alter pH. ParaGuard� employs a proprietary, synergistic blend of aldehydes, malachite green, and fish protective polymers that effectively and efficiently eradicates many ectoparasites (e.g. ich, etc.) and external fungal/bacterial/viral lesions (e.g., fin rot). It is particularly useful in hospital and receiving tanks for new fish and whenever new fish are introduced to a community tank.
 
Indications
ParaGuard� is appropriate for treating a variety of parasitic infections of exotic fish. Below are some of the more common infections treatable with ParaGuard�. Be aware that many diseases and infections share similar physical and behavioral symptoms, e.g. clamped fins, lesions, loss of appetite.
Ich (White Spot)
Velvet
Fin Rot
Flukes (Gill and Body)