Cupramine, 2 L / 67.6 fl. oz.

Price: $20.38 - $113.80
(as of Oct 21, 2025 23:40:07 UTC – Details)

Introduction to Cupramine

Cupramine is a copper treatment designed to effectively eradicate external parasites such as Oodinium, Cryptocaryon, Amyloodinium, Ichthyophthirius, and other ectoparasites in both freshwater and marine fish. It stands out for its superiority over other treatments like copper sulfate, chloride, and citrate, as well as chelates, due to its non-acidic nature, lower toxicity to fish, and ability to remain in solution without contaminating the filter bed.

Features

• Effective Against External Parasites: Cupramine is highly effective against a range of external parasites affecting freshwater and marine fish.
• Low Toxicity: It is less toxic to fish compared to other copper treatments, making it a safer option.
• Stable in Solution: Unlike some other treatments, Cupramine remains in solution and does not precipitate out, ensuring consistent efficacy.
• Removable with Carbon: It can be fully removed from the water using carbon or Cuprisorb, making water changes and tank maintenance easier.
• Wide Therapeutic Range: There is a significant concentration gap between the minimal therapeutic dose and the toxic dose, reducing the risk of overdose.

Pros

• Superior to Other Copper Treatments: Non-acidic, less toxic, and more effective than copper sulfate, chloride, and citrate.
• Fully Charged and Active at Low Concentrations: Making it more efficient and safer for fish.
• Easy to Remove: Can be completely removed with chemical filtration, making it ideal for tanks where the presence of copper needs to be strictly controlled.
• Highly Effective and Safe: Suitable for both freshwater and marine aquariums, provided they do not contain invertebrates, corals, crustaceans, or elasmobranchs.

Cons

• Not Suitable for All Aquariums: Should not be used in aquariums containing invertebrates, corals, crustaceans, or elasmobranchs due to potential toxicity to these species.
• Requires Careful Dosing: While it has a wide therapeutic range, careful dosing is still necessary to avoid toxicity to fish.

Product Details

• Product Dimensions: 3.25 x 5.75 x 9.5 inches; 2 Pounds
• Item Model Number: 568
• Date First Available: April 14, 2008
• Manufacturer: Seachem Laboratories, Inc.
• ASIN: B0002A5X78
• Best Sellers Rank: #205,573 in Pet Supplies, #1,590 in Aquarium Water Treatments
• Customer Reviews: 4.4 out of 5 stars, based on 3 ratings

Cupramine is a powerful tool for aquarium owners dealing with external parasites in their fish. Its effectiveness, safety profile, and ease of use make it a preferred choice for many, though it’s crucial to follow the manufacturer’s instructions and consider the types of aquatic life in the tank before application.