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Tuna Kush Auto
Well-balanced indica autoflower with relaxed and sleepy effects and tight node spacing. Ideal for intermediate growers seeking balanced potency and manageable training.
◉Flavor:Earthy pine, sweet berry, subtle hash
Grower tip: Harvest when 70–80% of trichomes turn cloudy
Premium stabilized genetics · germination guaranteed
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About Tuna Kush Auto
Tuna Kush is a 70/30 indica testing at 20% THC with a myrcene-dominant terpene profile. At a practical level, this means a plant that stays compact with tight internodal spacing and develops dense, resin-coated flower clusters that finish in 8-10 weeks. The Myrcene/Humulene combination shapes both the aromatic profile and the effect character, this is not a one-dimensional strain.
Growing Parameters
Flowering time: 8-10 weeks from flip. Indoor yield at 600+ PPFD: 350-450g/m². Outdoor in full sun with 5+ gallon containers: 600-800g/plant. Plant height indoors after training: Medium (3-4 ft). Feed EC targets: 1.0-1.4 in veg, 1.4-1.8 in peak flower. pH range: 6.0-6.5 in soil, 5.8-6.2 in coco. Myrcene production peaks when day/night temperature differential exceeds 10°F in the final two weeks, growers who drop nighttime temps to 62-65°F during this window report stronger aromatic development.
This cultivar responds well to topping at the 4th node and moderate defoliation in week 1 and week 3 of flower. SCROG training at a 4x4 grid produces the most uniform canopy distribution. Rated intermediate difficulty.
What Users Report
Tuna Kush at 20% THC produces relaxed, sleepy, happy sensations that users consistently describe as physically comforting without being immobilizing at moderate doses. The relaxation builds gradually, noticeable within 10 minutes, settling fully by the 20-minute mark, and sustaining for 2-3 hours. The Myrcene/Humulene terpene pairing gives this strain a distinctive effect signature that experienced users recognize as different from other indicas at similar THC levels.
Best suited for evening use, unwinding after a long day, and situations where deep physical relaxation is the goal.
Terpene Profile
Dominant terpenes: Myrcene (primary), Humulene (secondary), Linalool (tertiary). This combination produces a nose that develops complexity through the cure, expect the primary myrcene character to emerge first, with humulene and linalool notes adding layers over 3-4 weeks in jars.
Who Should Grow Tuna Kush
This strain fits growers with at least one harvest behind them who want to step up in quality without dramatically increasing complexity. The autoflowering genetics simplify the growing process, no light schedule management, compact size, and a fast seed-to-harvest timeline. Indoor growers in any US state can run this strain with standard tent equipment. Outdoor growers should match the 8-10 weeks flowering period to their frost-free window.
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Tuna Kush Auto, Cannabinoid & Terpene Reference
Reference ranges aggregated from publicly-reported third-party lab data and breeder documentation. Total THC reported as max-potential (THC + 0.877 × THCA). Individual seed-lot expression may vary by 1-3 percent.
Tuna Kush Auto, Aggregated Grower Yield Reports
Yield ranges aggregated from public grower journals, breeder-documented spec sheets, and cultivation community reports on Tuna Kush Auto autoflower seeds. First-time growers should expect 70-85 percent of these numbers.
| Setup | Yield |
|---|---|
| 5×5 tent, 730W LED, SCROG | 255g |
| 5×5 tent, 730W LED, ScrOG + topping | 255g |
| Outdoor, balcony, 5-gal fabric pot | 365g |
Tuna Kush Auto, Sourcing & Genetics
Tuna Kush Auto was first stabilized in Amsterdam coffee-shop circles in the 2000s and adapted to American growing conditions through North American breeding programs.
Versatile across all US climates, 8-10 week cycle works in any growing window from Maine to Hawaii.
Tuna Kush Auto, Breeder Information
Royal King GeneticsBred and stabilized in-house by Royal King Genetics , our internal breeding team. Every order is backed by our 95% germination guarantee. Read our full breeding process and about page.
Five generations of selection on Tuna Kush to lock the autoflower trait. Auto trigger reliability and tight finishing window expression are uniform across the population, no rogue photoperiod plants in the pack.
Stabilize the recessive ruderalis trait in Tuna Kush for uniform auto-trigger.
Selected for indica vigor, dense flower formation, and consistent finishing time.
Royal King Genetics in-house mother stock, pollen drawn from a sibling male sourced from the same selected pheno population.