Black Tuna was 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. In fact, the name originates from Black Tuna Gang that was well-known for the smuggling of Colombian marijuana in the 1970s in the United States. With a high THC level, it is a potent strain and may be a bit too much for a beginner or moderate users. It aids with insomnia, pain, inflammation, spasticity, nausea, headache and cramps.