HOB filter is fine, I kept a couple smaller sized same as yours with a hob and they usually swim on the other side of the tank where there is no current. Mine ate after a couple minutes being in the tank. Hikari Carnisticks crushed with my fingers is what I fed. And at 60$ that's a really good price, the cheapest ive seen is 80 and most the venders online or local is around 100-125$.