I'm guessing no.Do not know for sure,but i think the little tiny critters and such in LR need the little holes and cracks and crevices to hide in and such.You just need a few pieces of LR for the bacteria and some hitchikers,then they will spread to the BR.I say slow down a bit,maybe get some live sand and start your cycle.You won't be adding fish for awhile anyway(at least a month)trust me do this right ,you won't regret it.You'll be staring at an empty tank for weeks.