Break off dead tissue?

[SamMule]

Got this pink dragon frag a few months back. In my ignorance, I thought "it's an acro and needs high light". Ended up frying it and killing a bunch of tissue on the tips.
Been in lower light for a month or so and is recovering, but there is some dead flesh with algae that it doesn't seem to want to grow over. Should i snap off the dead stuff? Or leave it?

 

[ScottR]

Cut off the part with no tissue. If you keep it in good parameters, it will grow back.

Here’s a frag that has been clipped off. 6 weeks later has healed.

 

[SamMule]

Params have been good and stable. I'll clip it and see what happens.