Master Tuna marijuana strain is an Indica dominant that hails from Canada. The breeders of this kush are unknown. This herb is considered one of the most potent on the market. Tuna Kush cannabis plants grow small, dense buds that are drenched in resin. This marijuana plant is not recommended for outdoor cultivation, as it reeks of skunk and diesel during flowering time. Tuna Kush marijuana is good for night and evening time use due to sedative properties.