Seachem ParaGuard 250mL 2 Part Calcium Alkalinity add 1 capful to the

add 1 capful to the amount of solution that the doser will add in 2 to 4 days per 50 US-gallons (200 L) of marine aquarium water

other calcareous marine algae and many other marine organisms

well-fed reef aquaria

and aquatic plants

Seachem ParaGuard 250mL 2 Part Calcium Alkalinity add 1 capful to theEradicates ectoparasites and fungal, bacterial, and viral lesions. Safer to dose than formaldehyde, formalin, and methanol. Will not adversely effect bio filter. Overview: ParaGuard is the only fish and filter safe parasite control product available (for parasites on fish). 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