I'm estimating around 26". I feed it: tilapia, swai, veggie wafers, spirulina pellets, earthworms, and it take misc. veggies.Nice lung. How big, what are you feeding it?
I got lucky. It was aggressive when it was smaller, now it doesn't bother anything but the gravel siphon during water changesGlad to see you can keep roommates with it. Mine bites everyone in half so he has a 100 gal to himself