you dive for it and get it under water
The heart scale is used as a payment for the move tutor, or you can sell them.
move tutor house one heart scale - one move taught
After torterra is able to learn it, if you select no then you can use a heart scale and then teach it the move using the heart scale tutor
the move tutor is in Fallabor city to the west. but first before he'll teach your Pokemon a move you need to give him a heart scale
In the move tutor in Pastoria City.You have to have a heart scale
In Blackthorn City, there is a house where the move tutor lives. He'll teach one of your Pokemon a move they'd forgotten in exchange for the heart scale.
you have to get the move tutor to teach it to him by giving him a heart scale.
It is a basic move so you can just get a heart scale and go to the move tutor
give a heart scale to the move tutor in blackthorn city
You trade them with the move tutor for a move for any Pokemon that you replaced by mistakely. You find the move tutor in Fallarbour town. His house is next to the Pokemon Contest Centre! By RL9
there is no move tutor on blue/red/yellow. move tutor 1st appears in 2nd gen. games
Take it to a move tutuor, and he will teach you a move in trade for a heart scale. Unfortunately, Heart Scales do not work with the Move Tutor of Pokemon LeafGreen and FireRed. That particular Move Tutor only wants big or small mushrooms. So the Heart Scales have no other purpose in FireRed like they do in Ruby, Sapphire, Diamond or Pearl.