If no Bloons are nearby Alchemist can drench nearby track with acid.
~ Bloons Tower Defense 6 description.

Acid Pool is the first upgrade on the bottom path for the Alchemist in BTD6. It allows the Alchemist to create small, short-lived pools of corrosive acid near it to damage bloons when none are within its radius or if the Alchemist misses. Each Acid Pool can soak up to 5 bloons or last for 7 seconds before disappearing, whichever comes first. It costs $510 on Easy, $600 on Medium, $650 on Hard and $720 on Impoppable.


  • Acid Pool is affected by Faster Throwing if bought.
  • Once 5 bloons pass over a pool, it is used up and all bloons hit become soaked in acid, having a similar effect as if it was splashed manually, dealing 3 layers of damage over 4.0 seconds.
  • The pools cannot pop Camo Bloons if Alchemist doesn't have camo detection.

Monkey KnowledgeEdit

  • Acid Stability allows the pools to stay for 5 seconds longer, massively boosting its potential.


  • Generally Acid Pools can seem a bit weak, but the acid pools can be crosspathed with middle path to improve damage. While still fairly average, it is a cheap way to slightly improve your MOAB and Ceramic popping power.



  • This upgrade is also affected by Stronger Acid and will change its visual design from red to purple and have similar damage.
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