I have several corns myself and I'm working on building them a snake rack. Normally you want your hotspot for BPs to be around 90*, but that is too hot for corns. They only need 85* so you will either need to buy two separate racks or be able to independently control your flexwatt. For my rack, I have the corns on one thermostat and my BPs on another. I also put my BPs on the top because heat rises and I don't want to overheat my corns.