Goldfish turning black in patches on body and fins Buy the book Goldfish turning black within a short time indicates either ammonia or carbonate mineral (KH) poisoning. We say ‘poisoning,’ however, fish are actually burned by ammonia. Whitish marks first appear when the burns are fresh, although, they later turn black as they’re healing Burns… Continue reading Goldfish turning black
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Goldfish black patches indicates ammonia or KH burns
Goldfish black patches due to healing burns. Caused by ammonia, goldfish tuck their fins close to their body in an effort to escape pain. Created from the waste our fish produce, ammonia is the first toxin to form in the nitrogen cycle. More fish die from ammonia poisoning than any other issue
Keep your fish safe by learning about the cycle. Ammonia begins to form within hours after waste is produced. Goldfish keepers try keeping their fish safe by using water treatment, however, these treatments don’t have the power to convert more than 2.ppm in a single dose
Goldfish black patches
You can also try fighting ammonia by changing out aquarium water, however, it’s pointless. Mother Nature is stiff competition. She wins every time. Work with her, not against. You cannot fight nature
Learn more about the nitrogen cycle by reading 10 Steps to Goldfish Koi Keeping
Goldfish black patches