Thanks.... this one is very out going and a nice pet ...begs for food 24/7 eats every type of food I've given it ...will hand feed...and if startled will come right back to the center of the tank within seconds...aggressive to tank mates ....around 6 inches is number two in the pecking order in a120 gallon with 4 jags( about 9,8 and two 6 inches) ..does not run from the #1 jag just moves out of its way.... i will probably keep this fish over all but one of the Jags........Very cool! How are their temperament/aggresiveness?