Eradicates ectoparasites and fungal, bacterial, and viral lesions
Safer to dose than formaldehyde, formalin, and methanol
Will not adversely affect bio-filter
Seachem ParaGuard is the only fish and filters 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 hospitals and receiving tanks for new fish and whenever new fish are introduced to a community tank.
Types of Infections Treated
Parasitic Fungal Bacterial Viral
ParaGuard
Directions
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 to 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
Warning: Do not eat, drink, or get into eyes! In case of eye exposure, promptly & thoroughly wash eyes with water & seek medical attention.

Dog Food
Dog grooming
Dog Health & Supplements
Dog Tick, Flea & Deworming
Dog Toys
Dog Treats
Cat Food
Cat Grooming
Cat Health & Supplements
Cat Litter
Cat Tick, Flea & Deworming
Cat Toys
Cat Treats
Bird Accessories
Bird Food
Bird Toys
Aquarium Lights
filtration media and heating
Fish Aquascaping
Fish Cleaning and Maintenance
Fish Conditioners and Medication
Fish Filtration, Filtration Media and Heating
Fish Food
Fish lighting
Fish Pond
Fish Substrate
Small Accessories
Small Animal Food
Small Animals Health Supplements
Small Animals Litter and bedding
ADA
Animal zone
Avi-plus
Boyu
Bravecto
Chihiros
Dophin
EpicAquatics
Frontline
Hikari
Kit cat
Kyron Labs
Marltons
Meowmore
Montego
Natures Nest
NexGard
Ocean nutrition
Royal canin
Seachem
The 2hr aquarist
