They're getting curious

I just wanted to share the change in behavior of our little catfish. The first week or so they just huddled together in one corner and stayed there. But now, they're getting curious. Saro tried putting his hand in the water and they started to nibble. Yesterday, when I was transferring water out of one tank, there was constantly one fish (well, different ones probably...) swimming towards the pipe, looking, and then swimming away fast. Seeing that tickled me. Those little whiskers of theirs...
I think they're quite happy!