Hard to tell from the pictures. Does it look like a pimple? If so check your nitrates. My guess a couple of large water changes will fix that.
Pat
Hard to tell from the pictures. Does it look like a pimple? If so check your nitrates. My guess a couple of large water changes will fix that.
Pat
Your discus are talking to you....are you listening
It's almost completely gone today.
I'm guessing he got spooked and ran into something.
Ok, I was wrong.
Whatever this is it's spread to almost all the discus in the tank.
It's really hard to get a picture, but it looks like they are shedding their slime coat?
spots3.jpg
So far this is the only one getting dark
spots4.jpg
The only real changes I've made to the tank were
Adding flourish excel to try knock down some algae on plants I dipped in a peroxide mix.