Would be fine to house with a hippo if the tank is large enough. I had the two together, but they hippo recently got the boot (he picked on most of the other fish... too aggressive for my taste, but I didnt feed a whole lot). The
A. pyroferus has been an awesome fish for me, though. I just snapped a picture last night.
And here are some others throughout the last couple months. I think I've had it for 9-12 months now.
And this is a picture the day I got it.
You can see it's not changed much so far. If I were stupid (and I am), I'd like to try to get one of the other color variants, such as the half-black. We'll see!