The Jar was over 2', didn't fit real well in any bag I had but big black construction type bags. Have no idea how it happened either but it shot right out the side, skipping across the kitchen floor. I guess I just tend to think if they can bite through a rubber net if they get the right hold they're going through a bag too. Some of them teeth are purdy sharp! Some of these things can cause serious damage to a guy if instinct kicked in an you just went and tried to pick up a toothy fish in the event it's on the ground. I recently took some under jaw wolf pics and handling these things is something I often overlook, it can "get real" real fast - scary quick.....lolAll I know is that when I transferred my 12" arowana, 15" vittatus, 12" datnoids. 9" stingrays, the bag method worked perfectly. The old fashion nets r good, only issue is that with arowanas or tigers, u would need a second net or cover ur hands over the opening to prevent jumping out. I have no idea how ur jardini busted through a plastic bag. The big monster plastic bags from the LFS r so thick, I just dont know what to say about the jardini breaking through it.
I'm also not too keen on putting hands in the tanks here so using nets makes the most sense. I've always wondered how big or small a wolf could be and still be capable of removing a finger. Definitely not a good idea to stick your hand over the top of the net with toothy stuff, lol I just use a second net - the ol clam shell method.