My goldfish have always been kept in great condition. I have 2 in my 50L tank at the moment and they are small comets. Last night the slightly bigger one seemed less active than it usually is. The pH was slightly low but I fixed it right away and now its normal. I've kept an eye on them and I did a water change today, but straight after it the bigger one is swimming strange, he keeps rocking from side to side and when he swims under the filter flow he cant keep strong enough and gets pushed away. He was also wacking into the other fish and brushing against him. What's wrong with him??
fish keeps swimming strange and rocking from side to side?
- Thread starter Ammmz
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