The best discount code for canna-pet.com is CP150SAVE, which provides customers with a 40% discount. This code has been used extensively. Additionally, there's a unique code firstorder15 that allows new customers to save 15% on their first order. By signing up for the newsletter, customers can receive a coupon for 30% off a future order. Please note that these codes are subject to change and may have certain terms and conditions. Always check the website for the most current promotions.