Sps help

[Kyle Seeley]

Hi I bought this birds nest coral as a small frag and it has recently exploded in growth this past few months. It's honestly tripled in size. However, today I noticed a small white spot on one of the branches. Rest of the coral appears to have full polyp extension and seems fine. Not sure if maybe a crab is just picking at it or is this something I should worry about?

 

[FLAdaboy]

I wouldn't worry. The rest of the coral looks good.