I went home today for lunch to check on one of my chromis who is losing scales, so he is in quarantine. I started cleaning the filter and I took the protective piece off the intake and was adjusting the media in it while letting the bio media soak in a bucket with other various pieces. I left for 5 minutes to make a tuna sandwich and I noticed the flow had slowed down, a lot. So readjusted the media, nothing, so I started taking the filter apart. I pulled the needel wheel out and my chromis was wrapped around it! 
Tough lil bugger survived life at the LFS and ich, but died from my filter
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Tough lil bugger survived life at the LFS and ich, but died from my filter