- Joined
- Apr 20, 2022
- Messages
- 6
- Reaction score
- 4
- Location
- canada
- What state or country do you live in
- Other International
Hi guys, I recently bought this butterfly from lfs, it's been 2 weeks and it eat well so I start dosing copper, and few days later, when the copper level around 1.7, I noticed the appearance of this black mark around the tail and also the spine and I have no idea what cause this. But I did a 50% water change and added cuprisorb for the copper. It's been like this for 2-3 days, and it still eat a lot and behave well, any clue what's going on? maybe bacterial infection? I tried to add some seachem sulfaplex but not helpful. Sorry the glass is quite dirty and i took this with my cell phone, not that clear. Thx


