Created by 5 Star Organic in order to provide patients with a powerful hit of THC that is beneficial for chronic pain relief. It is a British Columbian stain made by crossing Lamb's Bread and Herojuana and is extremely popular in Canada. The effects of Black Tuna are experiencing a euphoric feel along with feeling happy, aiding patients with insomnia, pain, inflammation, spasticity, nausea, headache and cramps.