i was at my LFS the other day and picked up a juvenile Green terror (2 in.) and placed him in a 15 Gallon with 2 pictus Catfish. Im gonna move the green terror to a 75 once he outgrows the 10. But a month or so before this i saw that they had a very small Hejeta gar and i immedietly wanted to purchase him but i was told that i would need a very large tank very fast because they grow really big fast. So now that i have the 75 gal. can i put him in it with the green terror? or will they fight? Could i put an oscar in there? i need suggestions for tank mates. Also i cant get any bigger of a tank im broke