I'm going to be upgrading to a 125 gallon in the near future with two severums (red spotted and notatus), an EBJD, and 6 geophagus red head tapajos. Would a school of filament barbs fill out this tank nicely? How many could comfortably fit in a tank this size without it being overstocked? I saw some at the LFS and thought they would look awesome as a schooling fish in this tank but I wasn't sure how big they get. Do you guys think this could work? Anyone have experience with these fish?