if you look at various tetras and have many types in a tank they shoal. Also harlequins shoula with them, so I would presume that they would all shoal as well. cheers jk :thumbup:
Thanks JK, I ended up getting 2 red hooks, one standard, and one orange spotted one. they have some awesome black barred ones*but they look pretty stressed so I gave them a pass for now, see what they look like in a few weeks.