- Joined
- May 29, 2020
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- 5
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Hi there, I am very new here and I got a question regarding my fish in the garden pond. The pond I built myself some 32 years ago out of rocks, small rocks. The pond holds 6000 litres of water and I have a bio filter running 24/7 and UV light. Never had a problem all these years, fish always happy in clear crystal water. Lately I am noticing some fish have lumps on their body. I do not know what they are but the fish are still swimming alright and seem that they are not bothered. The question is, what are these lumps and can they be treated?