If that is a sexed pair of Kribs, very bad idea IMO, the catfish will innocently pootle across the tank to where the Krib fry happen to be hanging out that day and they will do well to escape alive. Anything that comes within ~15cm of the fry needs to be able to take some powerful blows dished out by the protective Krib parents.
I have a pretty complex situation going on in my African 6-footer: My female Blockhead "divorced" her breeding "husband" from around January; "married" the bigger male in there and produced fry ~4 weeks ago; my Synodontis (notata & brichardi) and my Euchilichthys spp. were forced to the right half of the tank by the Steatocranus parents (along with "ex-husband"); now "wife" has been evicted from the nursery home and spends her time in the central part of the tank. Besides the "ex-husband", everything else in there is ~12cm SL and my notata is ~22cm SL, it is stressful at times but the catfish are made of hardy stuff...
Far hardier than the average Corydoras spp.