Pygmy Cory - Hemorrhagic Septicemia?

[ray210]

Hello. Would you please take a look at the pics? Do you know what this is and how I might prevent it? I just found one of my pygmy corys dead, seemingly swollen and belly-up with air/gas and with red flushes particularly on the right side of his body.

Here's the Imgur link, as inserting the pics themselves seems not to be working right now.

Is it hemorrhagic septicemia? He was in my quarantine tank; he's new, along with five other pygmy corys who seem OK for now.

Thanks so much.