Open topped tanks

I have a small tank (70L) with about a dozen diamond tetras in it and I'm thinking of removing the hood and leaving it open topped. There's nothing else in the tank and there's some Brazilian pennywort floating on the surface. Has anyone had any experience of tetras jumping much?

Most of my fish would be "jumpers" or good escape artists, but it is rare for tetras to jump out from any of my tanks (mind you, over active Crenuchus could possibly leave a tank if diving to the top very fast).

ian

Grand, thanks. I suspected as much. I had Vietnamese White Clouds up until recently and found out very quickly that they leap to their deaths with apocalyptic fervour (I was going to reference lemmings, but at this stage we all know that's nonsense). Just wanted to make sure.

just seen this on adverts...if ya could get a big enough sheet of this to go over top and stop jumpers it would be ideal...super cheap

www.adverts.ie/fish-tanks/fish-tank-plas...-moss-carpet/5420977

Was going to leave my new coldwater koi tank open top until i came home one night and found a 40euro koi on the floor dead , so now it has three glass panels on it , it does however appear to the non fishkeepers as being open top