G'day guys,
In my experience, they are quite simple to look after. A lot of people have had bad luck with them, especially with "White Spot". I have an inkling that this might be stress related, I'm not sure.
I keep mine in a 4' x 18" x 18" tank, completely full of water sitting at around 6.5pH. I have a smaller filter that doesn't break the surface tension of the water - this I believe is essential, they seem to hate fast flowing water. The tank is kept at around 28 degrees Celcius, with a aquarium UV fluro on a 12/12 cycle. It has a base of large river stones, topped with smaller river stones and finally a layer of river sand. Several different species of plants were added a few months ago when I rebuilt the tank...mainly reeds, with some Java Fern in there too. The most important part is the hidey holes - three large pieces of drift wood that allow him to hide away out of view if he wants to. I've had him 5 years now and he's going great guns.