Decade+ is my preference, so fingers crossed.
School size of at least three: check. These are a little costly and pig-in-poke site-unseen, but if they're as fun & attractive as you say then I'll swing for 4(+)
Conspecific aggression, particularly at spawning times?
Re. gobbling tank-mates: is mouth size like most catfish, as in "bigger than it looks"?
Any issue and/or will they school of find schooling comfort with clown loaches? I'm noting that their preferred temperatures are a good 5C lower than clowns, but other habitats & parameters seem similar.
Do they suffer tendency to get curious & jam themselves into tight spaces and die, as per (clown) loaches?
Or jumping hari-kari?
Red-tail & rainbow shark issues? IE anything particular, as sharks tend to be... a**holes regardless.
Same query re. ghost & African knives, which can have similar tendencies.
Loads of bamboo in the plan, some already in the intended tank so long as they don't mind snuggling - which they don't seem to.