shop substrates (minis) from $5.90 Sold Out Select Select a mix Chonk Cronch Get CRONCHY! THE CHONK. from $24.90 Sold Out Select Gallons One Gallon Two Gallons Ten Gallons Get CHONKY! THE CRONCH. from $29.90 Sold Out Select Size One Gallon Two Gallons Ten Gallons Get CRONCHY!