He is definately a male cause he has huge bristles on his head.

I am using a bunch of the Stealth heaters right now and I like them a lot, but when I set up A 75G tank for my Midas I'm going to give that Hydor Eth inline heater a try.

I have a full grown male and he digs like crazy. I can here him at night thrashing around making the tank how he wants it. Just wondering if anybody else's plecos did this because this is the first time I've had one do it.