I used to clean a large tank with 2 3' Fimbriateds. I spent almost as much time shooing them away as I spent wiping glass!
I had a 5 foot green who wasnt all that bad, but my friend had a 3 foot peppered moringa in a 220 and it was a deamon.
My fimby was pretty docile. I had it for ~3yrs, it ate a few fish initially but eventually would only eat thawed squid or octopus. I had no reservations sticking my arm in its tank to work.-I always kept an eye on the eel but I was never worried about it shooting out of the water like the moringas were prone to doing. The fimby was very easy to catch when it came time to re-home it.
Is it the peppered moray or the moringa moray? Because those are two very different species of moray.
G. moringa is the scientific name...I can see why peppered might be sometimes used as a common name for them. I bought mine as black-spotted moray, but I've also seen tesselatas go with that common name too.