Most of the day he'll swim from the gravel straight up to the surfase repeatidly or from one end to the other at the top so fast he makes ripples. Sometimes he'll swim in crazy circles for hours at a time, he's crazy.
I have a cory who does that... And two freshwater gobies who also act like that sometimes. ADD FISH OWNERS, UNITE!
My adventures in keeping Indostomus crocodilus, the crocodile toothpick fish. AKA armored stickleback, paradox fish, and freshwater pipefish. Care is (to the best of my knowledge) exactly the same as Indostomus paradoxus.