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Freshwater Aquarium/Bumblebee - Ulcer?



Hi Richard,
I have a nursery tank with a poorly BumbleBee that has a growth that is growing and need some advice as to what I can do for it.
I seperated him from the normal tank and have been treating with regular water changes and a bacterial remedy (associated with finrot) but he is getting worse.
Do you have any advice as to medication or whether the growth is an ulcer or a tumor? Picture attached
Kind regards

Hi Mike

It's hard to tell from the pics but it looks like some sort of infection. I would start with a 30% water change, then do a 7 day treatment of treats a wide range of both internal and external infections. Follow the directions on the bottle. After the 7 day treatment, do another 30% water change. (do not do any water changes during treatment)

Pimafix should take care of it, but if he's not better after the treatment, then you'll need to upgrade to an antibiotic such as Maracyn or Maracyn II or a combination of both.

Remember to take the carbon out of your filter or it will remove the medicine from the tank.

Hope this helps, good luck!


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Richard Hight


I own and maintain several freshwater aquariums from 2 to 180 gallon. I can answer most questions about freshwater aquariums, including setup, cycling, maintenance, compatible tank mates, feeding. Moving? I've moved fish both across town and across the country and can help you get your little aquatic friends to their new home safely. I know and have experience with most freshwater community fish, South American Cichlids and African Cichlids. I don't answer questions about Goldfish or keeping Goldfish with Tropical Fish. I also don't answer questions about keeping crustaceans (shrimp, snails, crabs etc) with Tropical Fish, nor questions about saltwater fish or aquariums. I'm not available to answer questions on weekends, this is when I do maintenance on my own tanks.


Many years of personal experience with community tank fish, semi-aggressive fish (Barbs, Tetras, etc), Angels, South American Cichlids and African Cichlids.

HSG 2010-2011 prof

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