Mine has never jumped out. For awhile, I didn't have a top on my tank for awhile, and never really even thought about it.
mike_sema;3449327; said:man that could have really sucked I left the screen off one of my intake tubes for a canister filter and put 36 feeders in the tank and when I looked in the tank a few hrs late there were no feeders after looking close I realized that I had 36 feeders in my canister filter not cool