In my opinion, that 'fishy' smell is likely to be caused by worms. After a hard spring rain here, when you see the night crawlers dying on the pavement by the hundreds, you can also have that 'fishy' smell. As you said there was a lot of compost, I'd suspect there are a lot of worms too. Just a guess! -Jim Mild to Wild(R) http://www.StepUpForCharity.org