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Its hard to tell what size your jumper is from photo but they do tackle prey bigger then themselves . If not try smaller crickets size so your jumper can easily over power it .
I once saw a tiny little habronattus juvenile not even 4mm in legspan take down a blowfly a few years ago. It was probably the most epic takedown ive ever seen.
Your spider seems big enough. Ill assum its a half inch in legspan?