Hmmmmm..... middle being 30 mg/kg would be the same as .03mg/gram. Your Cham weighs...??? 200 grams???? If so, that would be a 6mg dose needed which would be 0.12 ml of your solution, or for round numbers about 1/10th of a ml.
Someone needs to second this or you need to check my math and your Cham's weight.
Duke