seahorse skin flaking

[katsreef]

both of my erectus seahorses have their skin flaking off and underneath is just discoloured skin. I treated the tank with amoxicillin last night. I have kanaplex and metroplex coming in, although not sure if I will need it after dosing amoxicillin. How long does it take for them to regain what has flaked off? How do I know if the treatment is working?

btw they are eating the same as usual and showing no signs of stress

 

[katsreef]

Here is a pic of the two of them