So I go on holiday for a week, in a week's time. So if I'm going to do a 5 day course, I need to start it soon. Here's how his tail looks today
You can just see the black curly edges and the 3 splits there are now. Have been treating with melafix but no apparent effect from that so far.
So what do you think I should do?

You can just see the black curly edges and the 3 splits there are now. Have been treating with melafix but no apparent effect from that so far.
So what do you think I should do?
