One seems to enjoy swimming around quite a bit for awhile, then stays in a spot for a bit, only to bolt somewhere else. The other seems more laid back, hiding in the plants or the other hiding areas I provided.
The tank has some fake plants to give cover so I don't think the more active one feels threatened.
Do ACFs have different personalities? I think it would seem more likely than not, but I figured if this is not the case someone may have knowledge as to why one seems more laid back and the other is a bit of a spazz.