It is definitely part of their charm, that always grouchy behavior. They can appear calm but behind that facade there are flames flickering, tickling and licking their last nerve and even worse these poor guys have no access to coffee to stymie their perpetual morning crankiness. As you said it can be set off by a inanimate object having the audacity not to give way when the Apu is on a leisurely constitutional. And who can really blame them? I mean here's this poor Apu doing their best to get in some exercise because they are health conscious, minding their own business chanting woosah to themselves trying to find their inner peace and then this thing dares get in their way. The Apu asks it nicely to move with a gentle but firm nudge and mouthing but the inconsiderate, impolite wretch just stands there in what's obviously quiet defiance spurned on by it's feeling of superiority over the Apu and the Apu has had all he can stands and he can't stands no more. So what choice does the Apu have but to stomp a mudhole into this autocratic object.Thank you JJ. Your stories are worth a hardcover book, as usual. I think the Pim will recover. It'd be risky and hard to make a hidey hole for our JellO inside a glass box because she is way too big and strong. She could throw anything around. And she will one way or another, sooner or later, as your story demonstrates as well.
Your and
No, the biter is JellO. My also-pleasant-to-associate-with wife and I both saw it on several occasions. As I reported in the video, the hybrid also received a little fin tatter but JellO attacks sedentary tank mates first and foremost, perhaps in analogy to the furniture. Hybrid does not like being in the 240 gal timeout and has been swimming almost non-stop since the introduction, so JellO pays it little mind. The rock-like pleco also receives JellO's attention. The less you move, the more likely you are to receive JellO's wrath.
Yellowcat
and
jjohnwm
did a hide of some sort but considering your Jello's size I figured it'd be a challenge. As stated they move very large objects when the mood strikes and the damage they may unknowingly due to their tank could be disastrous. Pipes I have personally found(I'm assuming you mean PVC or something of similar composition) are so light in weight that they make for poor hides for larger fish as they get pushed around too easily unless attached to something else. In my humble opinion driftwood as you said would probably be best your option but it would should be one of the softer driftwoods to prevent damage to your tank and as
jjohnwm
did wedge the driftwood into place. Except hopefully in your case it will soothe the savage beast rather than incur it's wrath. I also don't know what your lighting is on that tank but if the area with the driftwood could be of a lower light than the rest of the tank it may further the chances of being accepted by the Apu. I'm sorry if my suggestions aren't very helpful but the size of the Apu definitely makes things harder to figure out a work around for me.
