Richard Fife has bred reptiles for more than 40 years and leopard tortoises for more than 32 years. He is the owner and operator of Riparian Farms, a turtle-and tortoise-breeding facility.Visit him at ivorytortoise.com.enerally, about 150 square feet is suitable for one adult tortoise and an additional 75 square feet of area for each additional tortoise. If the grass in their yard is holding up to their grazing, you have sufficient room. If not, you should enlarge the enclosure or reduce the number of tortoises.