Tetra Pond Medifin

By the time a pond fish looks visibly unwell, several things could be going on at once, and waiting to identify exactly which one before treating can cost time the fish doesn't have. Tetra built MediFin as a broad-spectrum option specifically so identification isn't the first hurdle.

It's formulated as a combination of active substances aimed at the most common problems in pond fish, described by Tetra as having a very broad spectrum of activity against skin parasites and bacterial skin infections, and it's also positioned for use on wounds and external injuries. Tetra state it's simple to use, with no need for specific identification of the exact problem beforehand, and it's described as harmless to plants, fish and the filter when used correctly. It's marketed under the small animal exemption scheme, reference SAM0005.

• Broad-spectrum formula for common pond fish problems
• Aimed at bacterial and fungal issues, skin parasites, and external wounds
• No need to identify the specific problem before use
• Described as harmless to plants, fish and filter when used correctly
• Marketed under the small animal exemption scheme (SAM0005)
• 250ML

On the dose rate. "Harmless when used correctly" means dosing matters - Tetra don't give a per-litre dosage rate on this card, so follow the instructions on the bottle itself rather than estimating, and if a fish's condition doesn't improve, that's worth escalating rather than repeating the treatment indefinitely.

Who it's for: pond keepers who've noticed a fish looking unwell, with a wound, or with visible skin problems, and want a broad-spectrum first response rather than waiting to pinpoint the exact cause.