It sounds like your fish has a bacterial gill disease
How to be sure
Bacterial Gill Disease will attack your fish’s gills, causing them to rot and erode. This will make it harder for your fish to breath, so you may see it gasping for air at the water surface or rapid gill movement.
Step 1 – Treat your fish
- Treat the entire pond using Anti-Ulcer, you can calculate the correct dosage here.
- Also dose with Pond Guardian Tonic Salt to help support your fish’s immune system.
- Observe the recovery and follow any re-treatment advise on pack or on our dosage calculator page.
- Finally, give your fish some time to recover. Avoid excessive cleaning or adding new fish.
Remember to remove the carbon from your filter prior to dosing.