i agree with FRTs being very nosy. I researched all this behavior before I got the turtle. Honestly I took the risk and my FRT is perfectly in harmony with my Armatus. They never scuffle and respect their own personal space. So it seems my turtle is quite docile and lax toward tankmates.
Now regarding the wolf, it's going to be almost twice as big as my turtle. can't really afford to risky anything. i think i'm lucky enough to have a flawless armatus with the the turtle already.
I just have to say that the OP's wolf is flawless and is a great deal at this price. I'm surprised it's not sold yet. If I had another tank, I would definitely snatch it. GLWS