Nah it's Eco Earth. I would go broke using that Herptopia stuff. Way too expensive. Can get the triple blocks of Eco Earth from Chewy. com for like $5 each. And one triple brick is enough to do one of my 4x2 cages. And with 6 of them, I need 6 of those triple bricks which is like $30. If I used Herptopia, that stuff I believe was $30 for a 24qt bag. I would need 6 of those so it would run me $180 a month for just substrate. Not to mention feeding everyone is already about $100 a month as I haven't gotten around to buying a small chest freezer and ordering food online :(