San San no Mi (Acid Acid Fruit)

Devil Fruit Name: San San no Mi
Translation: Acid Acid Fruit
Appearance of the Fruit: The fruit appears like a neon green apple. It has purple swirls all over the outside of the fruit, with a stem that curls, also purple. In the inside, the fruit is pink with green seeds in an oval shape.
Type: Logia
Abilities of the fruit: Allows the user to create, control, and turn into an acid substance. The acid is used to corrode a biological or non-biological material. Later on in the mastery of this fruit, the user can lower or heighten the amount of pH in the acid.
Weaknesses At extremely high temperature the acid will evaporate, while at extremely low temperatures the acid freezes all together, in both states the acid is no longer usable. This fruit user may not be able to control any other acid then the one generated by the user.
Devil Fruit Progression:
Mastery Level 1-2: 3 Threads
Mastery Level 2-3: 5 Threads
Mastery levels
Mastery Level 1: The users acid must be kept at a pH level of 6-4, the lower the pH goes the faster the acid burns through or the more corrosive it gets.

Mastery Level 2:  The user may now lower their pH level from 6-3,the lower the pH goes the faster the acid burns through or the more corrosive it gets.

Mastery Level 3: The user can now heighten or lower the pH of his substance at will, a pH of 6-1, the lower the pH goes the faster the acid burns through or the more corrosive it gets.