Last night I quickly checked on my tank before I went to bed and I noticed one of my otocinclus' head what stuck inside the intake to my power filter! So i quickly got my net and pushed him out and he swam for a little bit before going to the top and just falling to the bottom of the tank. He stayed in a vertical position for a good 10 minutes almost lifeless. So I turned off the light thinking he wouldn't make it by the morning. Well this morning he is up and about doing what normal oto's do and shows no signs of stress. Weird.