Tinfoil Barbs ?. Why spend good money on fish it may eat or kill? Tinfoil barbs are a well known and highly successful dither for Central and South American Cichlids. I would get 5 or 6 of them, you definitely have the room. Their presence will make the Jaguar less shy and more likely to be on display more. Just make sure the barbs are big enough to not be a meal right now. How big is your Jaguar?