Seachem Cupramine 100 ml

Seachem Cupramine effectively treats external parasites with a low-toxicity, amine-bound copper formula that’s fully removable with carbon or Cuprisorb.

Cupramine effectively eradicates Oodinium, Cryptocaryon, Amyloodinium, Ichthyophthirius, and other ectoparasites of both freshwater and marine fish. It is superior to copper sulfate, chloride & citrate: it is non-acidic, less toxic to fish, remains in solution, and does not contaminate the filter bed. It is superior to chelates: it is fully charged (ionic), active at low concentrations, and is removable with carbon.

There is more than a four-fold concentration gap between the minimal therapeutic dose (0.2 mg/L) and the toxic dose (0.8 mg/L). Cupramine is easily removable with chemical filtration. It is highly effective and safe in freshwater as well as marine water..

Remove all invertebrates. Turn off UV sterilizer; remove chemical filtration. If the bottle has a dropper cap, use 20 drops (1 mL) per 40 L (10.5 gallons*) the first day, wait 48 hours, then repeat. On non-dropper caps, each inner ring is 1 mL. In freshwater use half dose. Final copper concentration is 0.5 mg/L (0.25 mg/L in freshwater). Leave at this concentration for 14 days. Do not re-dose without testing (MultiTest: Copper). Do not use in conjunction with any other medication. Do not add reducing agents (e.g. de-chlorinators, ammonia removers) to water treated with Cupramine. If tank has ever been treated with an ionic copper (e.g. copper chloride, sulfate or citrate), test copper level after initial dosing. Although most fish tolerate Cupramine to 0.8 mg/L, it is not advisable to exceed 0.6 mg/L copper. Remove with carbon or CupriSorb

In case of eye exposure, promptly & thoroughly wash eyes with water & seek medical attention.

Compatibility

Freshwater and marine fish-only systems.

Not for reef tanks and not for invertebrates. Copper is lethal to inverts at treatment concentrations, and it is adsorbed by live rock and substrate, so treat in a bare quarantine tank wherever possible.

Take carbon, Purigen and other chemical filtration out, and switch UV and ozone off. Do not use it alongside other medications, formalin, reducing agents, or a dechlorinator such as Prime during treatment.

Freshness & Storage

Every batch we dispatch carries a minimum of 6 months' remaining shelf life. Store this product in a cool, dry place away from direct sunlight, with the cap or inner foil closed tightly after each use.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number — or email us, if you would rather — and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 72 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.