Need help !!!!

[Bryanfishtanks]

Hi one of my tank fish are not doing good .ok so last night my fish where doing good but today they got a lot of fish diseases . I don't know how they got it . They all have pop eye red lines on them cloudy eye. And they all dying. How did this how did this happen overnight???


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[em1981ma]

You will get more replies if you post water parameters and more info how long has tank been running, diet, water change schedule. People can't help without this info

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[Delapool]

Hi one of my tank fish are not doing good .ok so last night my fish where doing good but today they got a lot of fish diseases . I don't know how they got it . They all have pop eye red lines on them cloudy eye. And they all dying. How did this how did this happen overnight???View attachment 259616


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Is this the same tank you were having problems with?

As above, water parameters would be useful. The more information you can post, the more we can help. Do you have a water test kit or a lfs that can do it?

Immediate thoughts are either a water chemistry problem or a sudden bacterial infection. If the fish were fine the day before than has anything been changed in the tank ( eg water change, new plants/fish, etc, etc).

Edit - all I can suggest is an immediate water change of say 30% using temp matched, dechlorinated/conditioned water. This assumes there is no issues with your change water and you do weekly water changes.