I put them into a 74 liter tank alone with a lot of rocks for hiding places and 3 caves, 2 with opening in the end and one with side opening. Filter with 800l/h, quite slow for catfish tank.
Just around one week after the male had picked his cave, the one with side opening.
The day after the female was inside and next day eggs.
Today i came home from the local aquarium club meeting and found around 10 small freshly hatched babies outside the cave

I put them into a breeding box with sand and airstone for circulation.
The male is still fanning on a big clutch inside the cave so i don't know how many its in there.(luckily)
The water was around 28-29degree, pH around 6,5-6,7 and conductivity is around 180.