Its a congicus.
The issue with polys is they are soo damn addictive but are great fish man. Longears are nice fish i know they like temperate temps but how would they do with warmer waters yr round ?
Im the same one nice big tank thats it. After the move id like to add some plecos and be done but the vulture still has allot of growing to do so id have to take that into consideration. Regardless of what changes i make i could never be polyless lol.
One piece of advice dont get a 300. Go bigger. Go as big as possible. I thought a 300 would fit the bill but once these fish put on size you realize that the tank isnt very big. I love the tank but regret not going 500+ gals. A little wider and longer would have been perfect. The issue is acrylic jumps up in price when you go over 8ft. The panels are made in 8ft sections so essentially they cream you $$$ wise for going say 10 ft long but wtf its a once in a life time purchase right