level 30
Tentacool evolves into Tentacruel at level 30.
Tentacool evolves into Tentacruel at level 30.
Tentacool evolves into a Tentacruel at level 30.
Tentacool evolves on Lvl. 30 into Tentacruel.
Tentacool evolves into Tentacruel at level 30.
It evolve in level 30 into a Tentacruel
Tentacool evolves at level 30 into Tentacruel.30
tenticool evolves into tentacruel
Like all games Tentacool evolves into tentacruel at LV30
Yes, it will continue to attempt to evolve until it reaches level 100.
level 30