Pump burnout and most fish died.

I came home the other day and smelled something that smelled like burning plastic. I found that a return pump had burned out in my sump. The body of the pump swelled and it had some cracking in the top where it is sealed. I pulled it out, changed the filter, and put carbon in. since then my fish have been dying off steadily but the corals, crabs, snails, and everything else seems to be doing great?? Water tests look ok. Seems strange to me, I figure the corals would show stress. Any ideas how to clean up this mess so I can start getting new fish?

Which pump failed? Brand? Model? Did you notice any oil or other nasty contaminants leaking from the body of the pump?

Thanks guys! I have done a 20% water change and the carbon. I have mixed more water and plan to do another. I think I have some Chemi-pure somewhere. I bought some a while back but never used it. It was a return pump I got off Ebay. had it for a couple years.

crazyreefer, you've got me crazycurious. How did you get away with making only 3 posts in four years!

LOL! I haven't logged on for a while. I googled this problem the other day and got alot of unrelated info. so I thought I would ask the experts.