KeddyPie
Fishaholic
Well, I noticed my filter wasn't working QUITE as well as it was previously, so I decided it was time for a heavy duty cleaning. I had a bucket of water on my floor from my tank change yesterday, so I took out the filter media and put it in the bucket, scrubbed it with my hands... Then I took out the peice at the end that helps spread out the water flow and helps lower the surface disturbance... I was not thinking when I did this. As SOON as I took this peice off, ALL the gunk sitting at the bottom of my filter POURED into my 20 gallon, completly polluting and clouding the water... it was DISGUSTING! I immediently did a rather large water change, probably about 35% of the water, because I was worried that the sheer amount of gunk in the water would have a very negative effect on my fish...
I guess things like that heppen when you're doing something for the first time
I'll remove the ENTIRE filter from the water before I try to clean it again! The good news is, it's working MUCH better now, and doing a good job of cleaning up it's own leftover gunk 
I guess things like that heppen when you're doing something for the first time