I found one in the last room of Mt. Moon hidden in the furthest top right rock.
Capture many paras and parasect you can find both at the safari zone.
Catch a bunch of Paras. They always hold tiny mushrooms. And Parasect also holds a tiny mushroom.
Nope as long as you have big mushrooms or tiny mushrooms you can have the move tutor teach Pokemon moves forever.
They can be given to the Move Relearner to teach a Pokemon a Move it's already learned in FireRed and LeafGreen, but serves no purpose other than to be sold in Diamond and Pearl.
You have to catch Paras and Parasects because they carry big and tiny mushrooms
on paras
You have to catch a Paris to get tiny mushrooms and a parasect to catch big mushrooms
you can get mushrooms if you go to mt moon and use the item finder in the lower levels near rocks
Tiny mushrooms and Big mushrooms are sometimes held by the Pokemon Paras and Parasect both can be found in Area 1 of the safari zone.
go to Pokemon tower on the 6th floor use the itemfinder
Go to two island and enter the house near the game corner a man will ask you for either a big mushroom or two tiny mushrooms supply him with the mushrooms and he will teach any of your Pokemon moves they previously tried to learn or moves they could of learned but didn't learn.
You can give her tiny mushrooms or big mushrooms.
No, but they do carry them. If you want lots, catch as many of them as possbile, then release them.