I have an idea!! and it’s great I tell you.
Haha, even better would be a tiny RC fish so i could try to catch those tetras. The last time i had to put them in a temporary bowl, they were impossible to catch, so i ended up using a hose to vacuum them into the bowl. That must have been an awesome ride for those buggers. 
I can’t refrain myself from suggesting you to put a brand new CAT inside, take a picture and post it in the Redux thread.
I feel much better now I’ve shared my mind…
I’d like to see that myself, but i asked the fish and unfortunately they strongly objected to the idea. 