For those of you that are looking into piranhas the stock from vendors is low... piranha season usually starts off around March with a shipment or 2 from peru/brazil until may/June is when all the baby Caribe come in ( if you want a more aggressive shoal I recommend waiting for Caribe over red bellies...Imo they look nicer and are less skittish) ....so do ur research now cycle your tanks and wait a few months there will be better choices