Really a beautiful fish. Assuming you tried more tank mates at some point to see if it would make him more comfortable? Seems some atf are much more skittish than others. I really like this guy.
Thanks! Only other non ray he has been with for an extended period of time was an ornate bichir who grew to be quite large before I sold him to Russ earlier this year. Bichir had a bin I gave him to hide out in from the rays and the goliath.
Never risked putting any other mid/upper level water fish with him aside from a silver dollar group he whittled down to 1 over time. My old goliath coexisted with my indo pacific tarpon for a while... until one day he decided to amputate the tarpons back half and take his tail off.
Tarpon made a miraculous full recover over the course of a year and is a big chunky 17"+ fella now. Never had my bigger tigers (goliath's or my old brevis) really tolerate any other mid water swimmer for an extended period of time.
Single tank species (except for rays) once they get big from my experience. Dithers made him appear more comfortable but he they just seem to focus more aggression on the dithers. Both goliath's I've had slowly picked off any silver dollar groups I use to have over time until only one remained, and I removed him from the tank.
All fish are different with unique personalities for sure. I wouldn't put other mid level swimmers at risk with the two goliath's I've grown out, once they get over 1ft or so.
