Description
xOverview
Seachem ParaGuard is designed as a moderate, fish- and filter-safe option for addressing visible external parasites and lesions in both freshwater and marine aquariums. The formula uses a balanced aldehyde-based component at 10% by weight, paired with malachite green and protective polymers. It avoids formaldehyde and methanol and is formulated to minimize pH changes, helping you maintain steady water conditions during treatment.
Why this matters for your tank
New fish introductions, quarantine routines, and hospital tanks often demand a cautious approach to disease management. ParaGuard offers a treatment option that aligns with common hobby protocols while keeping aquarium balance in mind. Its compatibility with a wide range of setups makes it a practical addition to many hobbyists’ routines.
- Bulk Pack Convenience: Includes three 500 mL bottles for extended care and back-up stock.
- Fish and Plant Safe: Suitable for use in both freshwater and marine aquariums with live plants present.
- Non-Invasive Treatment: Aims to address external parasites and lesions without aggressive chemical swings.
- Supports Aquatic Health: Contributes to a stable environment during short-term treatment windows.
Usage considerations
ParaGuard is intended for freshwater and marine fish and is not recommended for any setup containing invertebrates, corals, crustaceans, or elasmobranchs (sharks and rays). It does not alter pH, which may help maintain typical filtration and dosing routines in standard aquariums.
- Not for invertebrate- or coral-containing systems: Avoid use in reefs or mixed tanks with delicate invertebrates.
- Hospital and receiving tanks: A convenient option for temporary treatment during fish introductions or quarantine periods.
What’s inside and how it works
ParaGuard blends an aldehyde-based active component with malachite green and fish-protective polymers. This combination is designed to address external parasites and certain visible lesions while aligning with routine maintenance, without dramatic water chemistry shifts.
What you may notice in practice
In real-world setups, Aquarists often pair ParaGuard with good water quality and careful observation. While results can vary by tank, users may see reduced visible signs of infestation and healthier-looking fins when used in appropriate contexts and timing.
FAQ
Q: Is ParaGuard suitable for reef tanks or only fish?
A: ParaGuard is designed for freshwater and marine fish; not recommended for tanks with invertebrates, corals, crustaceans, or elasmobranchs.
Q: How is ParaGuard packaged and what’s in the bulk pack?
A: The product is sold in a bulk pack of three 500 mL bottles for extended use in hospital or quarantine setups.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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