Pichu will only evolve when it has max happiness with its trainer.
A fire stone might work, but ponyta's usually evolve at level 40.
Blitzle evolves at level 27
Level 40, although my friend migrated a Rapidash for me and it was level 27.
Pichu evolves when its happiness level is high. I'm not joking, that's a true answer. To get Pichu happy enough to evolve, all you need to do is win a lot of battles. Walking 512 steps will boost Pichu's happiness by one, even if fainted. When it does faint, its happiness goes down by one. Using any powder, root, or herb will decrease its happiness. Leveling up or challenging gyms/Elite Four does increase happiness. Using vitamins or grooming is another way of increasing happiness. The amount of happiness that increases goes down as it gets more happy. For instance, when its happy is from 0 to 99, it gets the most. 100 to 199, medium, and 200 to 255, the least. It gets harder to make your Pokemon happy as it goes, but trust me, as a veteran Pokemon trainer, it is indeed worth it.
Of course nidorino can. At a certain level nidorino will evolve into nidoking. You just have to be patient.
when it has high friendship
Pichu evolves by happiness.
it evolves into pikachu when it friendship level is high and you level it up
you have to make it happy you can do this by massages and giving it proteins you evolve pichu with happiness and freindship.you can also give him beris that make it frendlier
pichu does not evolve at a level,it evolves with a high friendship.Pichu can evolve at any level if it has enough friendship.
Pichu evolves by happiness.
You either keep training it, or make it real happy, making happy by giving it protein and such.
The level of your pikachu doesn't matter, because to make it evolve you use a thunder stone on it. i hope that answers your question. You can get a thunder stone underground.
happiness
you cant
pichu evolves by friendship so when it likes you enough it will evolve no it dosent it evolves at level 20
There's no exact level for Pichu to evolve on. Pichu will evolve when the friendship is at its maximum. It would help to bring it up by using stuff such as protein, carbos, zinc, etc.