my all baby fish have this white thing out from anus aftr 3 weeks,
I have 29 gal plant tank with CO2,after 8 months still couldnt grew any baby in my tank
Any chance of a picture of the fish?
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What sort of fish are they?
How old are the fish?
Are you breeding them or getting them from other people?
Are the fish dying?
What are you feeding them?