The funny thing is that...they will both die.
The lionfish will be soundly minding his own business and then see that cute little mandarin just happly sitting down to some pods
when the lionfish gets the dinner pangs...he slowly approachs *jaws music begins* the little mandarin is unaware of the predator watching his every move then.....*bah dah dum!* Gulp the little mandarin goes down in one single inhale of the predators massive mouth. A little while later the lionfish is getting a pain in his stomach not realizing (well fish dont realize but lets just pretend) that that cute little mandarin fish was chalked full of poisony goodness!
and slowly the venom begins to work on the lionfish until hes nothing but a floater...THE END!
Well thats my kids story "finding mandarin" set to hit theatres this fall...but seriously bad combo!