Tiger Barbs - HELP!!!

Really?

I have 3 tiger barbs and three albino tigers in a 30 gallon tank with a small pleco(so far) and 4 albino corys to clean up. So far, everyone gets along famously, maybe because I have plenty of plants and places to hide. My corys are quite busy most of the day.
 
I have plenty of places to hide and plenty of plants too, but there isnt a single one of my corys that hasnt been harrassed. Now that the barbs are gone, its obvious that the corys are much happier.
 
AquariaCentral.com