Internal Bleeding in Hong Kong Pleco?

I just got this Hong Kong Plecostomus a day ago...But today he passed.
He was very healthy and active, zooming around the tank and sucking on everything like every pleco should do.

However, when my fiance took him out of the tank, he noted that he was sheet white and was bleeding out a bit. Not to mention that his chest was completely red on the inside...

The woman who took him out of the tank at the store was...less than gentle. I told her to just make it easiest for both the fish and herself. I didn't see much, but from what I could see, she was trying too hard NOT to get the gravel in the net...

I'm wondering now if he died of internal bleeding. It makes a bit of sense to me.

Thanks for all help,

_Chi_

 

Sorry to hear of the lose. They are cool fish. It's hard to tell, if your water per. were perfect, he may have been damaged when caught.