Operation Trigger rescue

[bullit67]

I have a Sarggasum trigger that has managed to get in to one of my overflows he has been in there for over a week now and to my surprise he is still alive I thought he was dead as I could not find him. But I took another look today as I wanted to remove the body if I could to prevent water problems. And he is happly swimming around in the overflow so now I need some Ideas how to get him out it is a full depth overflow on a 30 inch deep tank. I dont know If I will beable to net him.

Any Ideas I am sure some out there has gone through this befor