Round blue tablet imprinted APO over C-1 is 1 mg
clonazepam made by Apotex. You can find an image of your pill at apotexcorp.com
I've seen pictures of yellow, pale aqua and blue 1 mg clonazepam. Apparently different manufacturers aren't adhering to the same color scheme.
More info:
http://clonazepam.drugs.com/
I'm not a pharmacist or a medical doctor. This message is not medical advice nor is it an offer to provide medical advice. All drug identifications should be validated by a licensed MD or pharmacist.