So after battling with cyano and finally seeing 2 days with no signs of it. I come home from work yesterday to hear my skimmer making a lot of racket. So I shut down the pump and investigate. What do I find? The blenny... poor guy got sucked into the pump. So I got him out of the pump, put it back together, start it back up let it work for a little bit and did a water change. Hopefully this won't set me back any with the cyano. In the meantime we'll call that lesson learned on fish in the sump.