I say go with an eel, tire track or fire. and a datnoid.
Tire track and Fire eel will both outgrow a 125G... maybe something like the peacock eels etc would be a better choice being MUCH smaller...
I say go with an eel, tire track or fire. and a datnoid.


I see alot of people dont seem to see that you said your not gonna be upgradingGulper Catfish should grow to around, 12" to 14" and ive heard theyr easy to handfeed. The smaller puffers are cool to, even tho they like brackish water. Stingrays are very cool, planning my Whole stingray "journey" my self, but a 125 wouldnt fit any of them for life. I've had Frontosas my self in my 140 gallon, and theyr where my favorite fish, and when they started breeding it was just awesome.. Watching them breeding, laying eggs, and having their fry in the mouth was very facinating. I kept a Little Group of 3 Synodontis Eupterus, they hid alot but when theyr where not hiding theyr where very nice looking fish.