Did you know fantastic help is an anagram of Planet Catfish? This forum is for those of you with pictures of your catfish who are looking for help identifying them. There are many here to help and a firm ID is the first step towards keeping your catfish in the best conditions.
I think it could be L236. It's not L333 or L66. Could be any of the L400/L399 type, as they are a mess in ID... But looking at markings and coloration I don't think so, as L400 sp seems to turn grey at older age. They don't look to be that big also.
They are about 10 - 12 cm (TL), and full-grown. Special thing about them is that some (especially males) are nearly black (see first pic). Another detail is that all the fry always have white as "backgroud-color". None of them has a yellow-touch, as often seen on L333's and other Hyps. I also don't think on L400. I own 400's of two sources, and it seems to me that they have a very different body shape.