Seachem ParaGuard Bacterial & ; Fungal Infections Fish & ; Aquatic Supplement For more than 30 years aquarium hobbyists have turned to Seachem Laboratories for products designed by chemists and biologists. Eliminate parasites and external fungal/bacterial/viral lesions with Seachem ParaGuard. Using an effective proprietary synergistic blend of aldehydes malachite green and fish protective polymers this product does not contain formaldehyde or methanol. Seachem ParaGuard will not alter pH. It is good for use in hospital and receiving tanks for new fish and whenever new fish are introduced to a community tank. Instructions: Dosing: 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. ParaGuard™ can also be used as a medicated dip. For 1 hour dips use 3 mL per 4 L (1 US gallon) in a container separate from your main tank. Dips may be extended if the fish show no evidence of stress. Keep in mind that many diseases linger in the water as well as on the fish. Giving a fish a dip treatment does no good if they go right back into infected water. Quarantine: This is a tank set up in order monitor and medicate new fish before they go into the main tank. ParaGuard is gentle enough to use prophylactically (without visible symptoms) if needed. Quarantine times vary but we generally recommend 2 weeks of treatment with ParaGuard™ to clear out any possible external infections. Sensitive Fish: Some fish are more sensitive to medications than others. Eels loaches rays sharks and many others are well known for their sensitivity to all kinds of medications. If you suspect that your fish may be sensitive to medications it is just fine to start with a partial dose and build up to the full dose over several days. Not recommended for reef aquaria. As an alternative use Seachem’s MetroPlex™.