Get along with other fish and themselves? What do they come with muzzles? LOL
If they get along with other fish, then they're definitely worth 300. bump for you.
Had them in a 300 with 4 Odoes, 2 Cynos, and 6 rays. Were in there for probobly a month or better. Couple fin splits here and there but not so much as even missing scales.....
No muzzles needed.... 2 of the 3 had proper upbringing.