I have a "freshwater" moray eel (Echidna rhodochilus) that I keep in brackish water (SG~1.010). He is out growing his home and I would like to put him in my saltwater aquarium with my mexican dragon eel, puffer and clown trigger- this aquarium is 150gl. Knowing that there is no such thing as a truly freshwater eel, would it be alright to transfer him? Any help would be great!!