Stonefish and GSP?

[Chad55]

I can't stop tossing around different ideas for my 75 gallon.... I want to do something different with plenty of activity. My girlfriend wants a couple GSP. I am ok with that idea but I don't want to just do two fish in the tank. I am currently building a 20 gallon sump filter for it and I have a speed wave dc790 running it at around 700 GPH so the fliter game is strong. I also have about 60 pounds of slate to build up plenty of caves and hiding spots. So I guess my question is, is there any fish (maybe a stonefish) that I could put in with two GSP?

 

[WinterAlloy]

I know it has been a while since this post, but did you make a decision? I would assume the GSP would pick at the fins of a still fish, or else you might get a choked lionfish, like it ate a balloon.