Originally Posted by Ingy
Can you position the bucket he's in inside the tank and under your water return (if it's a back mounter power filter)? That way hell get heat and flowing water which will overflow into the rest of the tank. Or else a medium bowl with steep sides on the bottomed the tank. He shouldn't escape and if you change the bowl daily the snail shouldn't get interested in it and crawl inside to his doom.
That sounds like a much better idea should I get a breeding net or one of those things?