Like most ppl have time to train fish to do tricks. Good grief. A fish will generally only do something it would do naturally anyway, like most animals. Ollie likes to leap clear out of the water sometimes when having brekkies or supper (Not an easy task with that finnage!) but never does so at any other time, nor would I try and force him into it. Some of my fish will let me hold them or pick them up by hand (And they stay perfectly still)(Only if needing to move them of course) simply because they find it less stressful then a net, but, again, I'd never force it upon them. But I don't see any harm in it. After all it's no different to training a dog or horse etc. What we need is a way to train our catfish to walk on their tails like dolphins. [/jk]
Not overly costly really and no, I easily spend that sorta time with my Ollie every day. Trouble is I do so with all my other fish too and that time adds up. 
) 
...I already spend at least that much time on mine every day
