My Pink Con is very well behaved with the smaller fish, she used to argue with my Oscar when i had it but never really bothered anything else in the 3 years i have had her, do you think she will bother the Corys because she spends most of her time near the bottom, i know they don't keep things like Kribs and Firemouths with Corys, but I assume that is in smaller tanks, theres loadsa room to hide in my tank and the Con is only 3" max in my 75g, what do you think?