Coral problem

[Kapachuka3]

I’ve posted something about this before but it looks worse. Does my leather have a disease or something? It looks like its melting or something.

 

[56longroof]

Give it a iodine dip. Mine was starting to look the same way. It took a couple weeks but it bounced back.

 

[Kapachuka3]

Give it a iodine dip. Mine was starting to look the same way. It took a couple weeks but it bounced back.

Would i have to do an iodine dip? Never done a dip before and dont want to stress it more, would it be fine just leaving it be and doign water changes constantly, any idea whats causing it?