3X Crazy Autoflower vs Ace Killer OG Feminized — Side-by-Side Comparison

3X Crazy Autoflower and Ace Killer OG Feminized keep showing up in the same buyer questions, and the reason is simple: they overlap in popularity but not in payoff. The comparison underneath uses real cultivar data — THC, indica/sativa split, flowering time, indoor and outdoor yield, height, and difficulty — so the decision becomes a matter of fit, not hype.

3X Crazy Autoflower vs Ace Killer OG Feminized at a glance

Spec3X Crazy AutoflowerAce Killer OG Feminized
THC21%25%winner
Strain split82% Indica / 18% Sativa66% Indica / 34% Sativa
Flowering time8-10 weekswinner
Indoor yield350-500g/m²
Outdoor yield50-200g/plant
Plant height60-100cm
DifficultyEasywinnerIntermediate
AutoflowerYesNo
FeminizedYesYes

Effects compared

3X Crazy Autoflower delivers

euphoricfocusedcalm

Both share

No overlap — these strains hit very different notes.

Ace Killer OG Feminized delivers

relaxedsleepyhappy

3X Crazy Autoflower and Ace Killer OG Feminized aim at almost completely different effect profiles, so the choice between them is less about strength and more about the kind of session you want.

Growing 3X Crazy Autoflower vs growing Ace Killer OG Feminized

3X Crazy Autoflower

  • Flowering: 8-10 weeks
  • Indoor yield: 350-500g/m²
  • Outdoor yield: 50-200g/plant
  • Height: 60-100cm
  • Difficulty: Easy

3X Crazy Autoflower delivers relaxing indica effects in a fast-finishing autoflowering format — seed to harvest in 9-11 weeks.

Ace Killer OG Feminized

  • Flowering: Not specified
  • Indoor yield: Not specified
  • Outdoor yield: Not specified
  • Height: Not specified
  • Difficulty: Intermediate

Ace Killer OG Feminized seeds deliver Relaxed indica effects at 23-27% THC. fuel and diesel flavor. Auto genetics.

3X Crazy Autoflower finishes 91 weeks sooner than Ace Killer OG Feminized, which matters most for outdoor growers chasing the first frost or anyone running back-to-back indoor cycles. On harvest weight, 3X Crazy Autoflower edges ahead, especially when you give it a full SCROG net. If you are still building muscle memory around feeding and humidity control, lean on 3X Crazy Autoflower.

Which should you grow?

So which strain wins?

Best for beginners

3X Crazy Autoflower

Best yield

3X Crazy Autoflower

Fastest harvest

3X Crazy Autoflower

Highest THC

Ace Killer OG Feminized

Frequently asked questions

Which is stronger, 3X Crazy Autoflower or Ace Killer OG Feminized?+

Ace Killer OG Feminized comes in higher on the lab sheets at around 25%, compared with 21% for 3X Crazy Autoflower. That said, real-world potency depends on phenotype, cure, and grow conditions — both strains can deliver a serious hit when grown well.

Which yields more, 3X Crazy Autoflower or Ace Killer OG Feminized?+

3X Crazy Autoflower pulls ahead on yield with up to 350-500g/m², while Ace Killer OG Feminized tops out around . If grams per square meter is the deciding factor, 3X Crazy Autoflower is the safer pick.

Which is faster to harvest?+

3X Crazy Autoflower flowers in around 8-10 weeks, beating Ace Killer OG Feminized's window. For a quicker turn-around or for outdoor growers fighting an early frost, 3X Crazy Autoflower is the smarter bet.

Which is easier to grow?+

3X Crazy Autoflower is the more forgiving plant of the two — rated Easy versus Intermediate for Ace Killer OG Feminized. First-time growers will have a smoother run with 3X Crazy Autoflower, especially in a small tent.

Where can I buy 3X Crazy Autoflower or Ace Killer OG Feminized seeds in Canada?+

Royal King Seeds carries both 3X Crazy Autoflower and Ace Killer OG Feminized as feminized seeds shipped discreetly across Canada. Each strain ships with our germination guarantee and tracked Canada Post delivery in plain unmarked packaging. Visit the 3X Crazy Autoflower page or the Ace Killer OG Feminized page to pick your pack size in CAD.

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