Seachem ParaGuard, 500 mL / 16.9 fl. oz. – 603

ParaGuard is the only fish and filter safe aldehyde based (10% by weight) parasite control product available. 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 on fish (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. For use in freshwater or marine. ParaGuard is recommended for the treatment of certain diseases in marine and freshwater fish only. It IS NOT recommended for treating any style aquarium containing invertebrates, corals, crustaceans, or elasmobranchs (sharks and rays).

Make sure this fits by entering your model number.
TREATMENT: ParaGuard contains a proprietary blend of aldehydes, malachite green, and fish protective polymers destroys parasites,external fungal, bacterial and viral lesions. ParaGuard contains no formaldehyde or methanol and will not alter pH.
SAFE: ParaGuard is the only fish and filter safe aldehyde based parasite control product available (for parasites on fish).
EFFECTIVE: Seachem’s ParaGuard effectively and efficiently eradicates many ectoparasites including ich and external fungal, bacterial, and viral lesions.
USE: ParaGuard is used for treating a variety of parasitic infections of exotic fish. It is particularly useful in hospital and receiving tanks for new fish and whenever new fish are introduced to a community tank.
DIRECTIONS: Remove all invertebrates from the tank as well as any chemical filtration. Use 5 mL (1 capful) of ParaGuard for every 40 L (10 US gallons). Repeat this dose daily as required as long as fish show no stress.