too bad. a group of 5 Pim pictus would fit in nicely, and they're good looking and interesting.
Microglanis is nice, but that's one of those that hides all the time, including feedingtimes.
Auchenipterids are nice, but they hide ALL THE TIME. it takes a true catfish-addict to appreciate keeping fish wich you will see twice
Once when you release them from the bag, and once when you clear out the tank.
a few show themselves allright at feeding time, but they're hard to get or very small (like Tatia perugiae).
Years ago Driftwood- and Zamora-cats were quite common (these will show up when feeding, Driftwoods more than Zamora's), but the last few years they seem to have vanished.
Trichomycterids like Ituglanis can be kept with ease in any normal tanks; it's Eremophilus that's more fragile when temperatures rise or oxygen drops. unfortunately those fish are imported erratically to say the least.....
You could go for some Doradids; Platydoras, Orinocodoras, Agamyxis, Amblydoras and Acanthodoras are quite peaceful and good looking. The one that shows up most often with feeding time is Orinocodoras. These fish do fine as single or pair.
The "featherbarb-Dorads" like Opsodoras, Hassar and Trachydoras are all
shoaling fish and you should keep them with at least 5. singles will never show up and likely die. 2 won't do either.
If you want a mediumsize cat that shows, Hoplo-species are the best. highly visible and very entertaining. maybe not as "rare", but worth every penny.
If you ever see Platystacus for sale; GET IT! it's a very easy to keep fish (likes all the foods), but it requires clean water and best: NO cichlids. apart from that, it's like a huge eel-like oversized Banjo, but a live one!
always doing something weird, and very visible, not to say
weird.