This kit is recommended for differentiation of bacteria based on their ability to decarboxylate amino acids. One Kit contains 24 tubes (8 tubes each of LQ015- Moeller Decarboxylase Broth w/ Ornithine HCl; LQ016- Moeller Decarboxylase Broth w/ Lysine HCl; LQ017- Moeller Decarboxylase Broth w/ Arginine HCl).