Charlotte-47
Aquarium Advice Apprentice
- Joined
- Jan 28, 2023
- Messages
- 31
I hope the picture has attached.
My goldfish has this red mark on his tail, can anyone advise what it could be please and what I need to do. It appeared a couple days ago and has got noticeably bigger. Thank you.
I did a water test yesterday-
Ph -7.6
HR Ph- 7.8
Ammonia 0ppm
Nitrate 0ppm
Nitrite 0ppm I will test again in a minute.
Info - Tank is 200L, two large very old goldfish, last water change 4 days ago 50%. Tank has Fluval filter and airstone. Both fish are eating and their habits are the same. Tank hasn’t changed, been set up for years (fish moved house a month ago but all filter medium, water etc came with them) . Water change 50% once a week.
My goldfish has this red mark on his tail, can anyone advise what it could be please and what I need to do. It appeared a couple days ago and has got noticeably bigger. Thank you.
I did a water test yesterday-
Ph -7.6
HR Ph- 7.8
Ammonia 0ppm
Nitrate 0ppm
Nitrite 0ppm I will test again in a minute.
Info - Tank is 200L, two large very old goldfish, last water change 4 days ago 50%. Tank has Fluval filter and airstone. Both fish are eating and their habits are the same. Tank hasn’t changed, been set up for years (fish moved house a month ago but all filter medium, water etc came with them) . Water change 50% once a week.
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