Acid Pool

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 when no bloons are within its radius. It costs $TBA on Easy, $TBA on Medium, $TBA on Hard and $TBA on Impoppable.

Trivia

 * Everytime a bloon passes over a pool, it is used up and the bloon becomes soaked in acid, having a similar effect as if it was splashed manually, dealing 3 layers of damage over roughly 3 seconds.
 * A Monkey Knowledge upgrade named Acid Stability allows the pools to stay for 5 seconds longer, massively boosting its potential