Hey everyone, just wanted to know whether anyone has experienced this before, and if its normal? I’m just concerned because my powder blue had similar black marks 2-3 weeks before dying of an unknown cause (which would eventually end up killing half my fish: tangs and angels). I ended up treating it with Formalin, and since then i’ve had no other casualties (I also have a royal dottyback, midas blenny, and 2 clowns). I’ve had the Moorish Idol for almost a week now. His been eating well and has showed no signs of weakness or irregularities. In the past couple of days his developed this same mysterious mark.
Tank:
- 350L
- Salinity: 1.025
- Temperature: 25 Degrees celsius
- Ammonia = 0 (don’t have exact value)
- Nitrates = 8ppm
- Calcium = 400ppm
Tank:
- 350L
- Salinity: 1.025
- Temperature: 25 Degrees celsius
- Ammonia = 0 (don’t have exact value)
- Nitrates = 8ppm
- Calcium = 400ppm