I am sorry to hear. Hopefully the treatment will clean them up. Good luck!
I have 3 subs of SD I think.
1. M. Lippincotainus
2. M. Argentus
3. M. Hypsauchen
I would like to add Metynnis Fasciatus once the 220g is up and running.
Pictures in thread
Hardscape additions: REALLY HEAVY rocks
Also keep in mind if you have an inch or so of substrate between the rock and your egg crate or pvc safety barrier, plus more substrate cradling the entire bottom of the rock your actually distributing the weight through the entire surrounding substrate bed. Not one single point on the glass.www.monsterfishkeepers.com
And I have to compliment your SD collection, you've got a good diverse group and all lookers too. I've always felt SD's are underappreciated so I'm glad to see some people are enjoying keeping these great fish. I've gotta couple of SD's myself, I've got some Metynnis lippincottianus, fasciatus and some Myleus Setiger.
He's been that way for months.I see. Weird it happened because you keep good water quality. Should get better on its own. Take care.