Seachem Laboratories ParaGuard Aldehyde Parasite Control 67.6 fl oz

When a new fish joins your tank or one of your finned friends starts showing trouble, you want a treatment you can reach for with confidence and keep on hand. Seachem Laboratories ParaGuard in the 67.6 fl oz size is the brand's aldehyde-based parasite control product, and this large bottle is the one to keep stocked for bigger aquariums, busy fish rooms, or anyone who treats often. It is formulated to be both fish safe and filter safe, so you can care for your aquatic family without tearing down your established setup or starting your tank over from scratch.

• Aldehyde-based control (10% by weight) that Seachem describes as the only fish and filter safe aldehyde parasite product available for parasites on fish.
• Contains no formaldehyde and no methanol, unlike the highly toxic, difficult-to-use formalin-based medications the brand contrasts it against.
• Will not alter pH, so the rest of your water chemistry stays right where you carefully set it.
• Uses a proprietary, synergistic blend of aldehydes, malachite green, and fish protective polymers.
• Seachem says it effectively and efficiently eradicates many ectoparasites, such as ich.
• The brand also notes it targets external fungal, bacterial, and viral lesions, such as fin rot.
• Particularly useful in hospital and receiving tanks where new arrivals get their start.
• A smart choice whenever new fish are introduced to a community tank.
• The generous 67.6 fl oz volume means fewer reorders for high-volume keepers and bigger systems.
• Active ingredients are Glutaral and Malachite Green.

Keep this big bottle in your fish-care kit so you are ready the moment a quarantine tank fills up or a community tank welcomes newcomers. Because it is built to be both fish and filter safe, you can fold it into your normal care routine instead of dismantling a tank you have worked hard to balance. Always follow the label dosing for your tank's specific volume, and remember these are the brand's described uses, not a promise of any cure. With the large ParaGuard bottle on the shelf, you can give your underwater companions thoughtful, steady care all year long.