Betta with mouth pimple? Help.

Colin_T said:

I was going to say it's either a bacterial infection or a tumour. However, since you have tried antibiotics and they haven't made any difference, and it has been growing for a few weeks, would suggest it's either a drug resistant bacterial infection or a tumour. Most likely a tumour.
Bacterial infections tend to spread faster.

You can try salt and that can treat some bacterial and fungal infections. If there's no improvement after 2 weeks with salt in the tank, then there's not much you can do about it.

When the fish stops eating or can't eat properly, or can't swim properly, or is irritated by the growth, then euthanise it.

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Kanaplex contains an antibiotic called Kanamycin and only treats bacterial infections. It does not treat fungus, regardless of what SeaChem says. I have spoken to them about this before and they have false information on their packaging but aren't willing to change it.

Their response to my query about the medication treating fungus was along the lines of "most people can't tell the difference between fungus and bacterial infections, so they put both diseases on the packet".

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SALT
You can add rock salt (often sold as aquarium salt) or swimming pool salt to the aquarium at the dose rate of 1 heaped tablespoon per 20 litres of water. If there is no improvement after 48 hours you can double that dose rate so there is 2 heaped tablespoons of salt per 20 litres.

Keep the salt level like this for at least 2 weeks but no longer than 4 weeks otherwise kidney damage can occur. Kidney damage is more likely to occur in fish from soft water (tetras, Corydoras, angelfish, Bettas & gouramis, loaches) that are exposed to high levels of salt for an extended period of time, and is not an issue with livebearers, rainbowfish or other salt tolerant species.

The salt will not affect the beneficial filter bacteria, fish, plants, shrimp or snails.

After you use salt and the fish have recovered, you do a 10% water change each day for a week using only fresh water that has been dechlorinated. Then do a 20% water change each day for a week. Then you can do bigger water changes after that. This dilutes the salt out of the tank slowly so it doesn't harm the fish.

If you do water changes while using salt, you need to treat the new water with salt before adding it to the tank. This will keep the salt level stable in the tank and minimise stress on the fish.

When you first add salt, add the salt to a small bucket of tank water and dissolve the salt. Then slowly pour the salt water into the tank near the filter outlet. Add the salt over a couple of minutes.

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Fishiies said:

literally looks like one if my females... ive also been dosing w kanaplex and nothing.

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Fishiies said:

literally looks like one if my females... ive also been dosing w kanaplex and nothing.

Click to expand...