Sorry to bother you again XP

How can I max a pet's mana? I've asked one person and they told me I must find a already existent sylesti with 120 mana and breed with it... Is there any other way? Through nuturing? Through careful selective breeding?
(I mean other ways apart from philters, and also are there philters for mana?)

yeah, unfortunately at the moment the only way to get 120 mana is for at least one of the parents to have 120 mana.
However, I do believe that the max mana might be different once the megazone comes out, so who knows, maybe we'll also get philters to boost specifically HP and Mana of hatching egglings (currently the only philter that does HP is the Prismatic, and there's none at all for mana.)
(had to go on a bit of a trawl-hunt of Krin's pets, before finally finding the one we were sure we'd seen him show us in the chat once, when he was doing a Megazone test or something: this girl, who has 130 mana)

now excuse us, we need to go stop our cat from doing... something.

Thanks!

If you're willing to, could you tell me where I can find non-project puffadores w/ 120 mana for breeding, or could you find me a breedable puff w/ full mana?

I totally understand if you don't want to, because I'm also trying and I know it's really hard o3o

You can look the advenced shearch for puff set for breeding with bosted stats. It's a bit long but you may find sonthing that cqn be helpfull.

I not actually sure... if it's possible to get puffadores with mana over 100?

Puffadores are. A weird case. In that they're the... pseudo-fabled.
They can only be obtained non-fest-wise from the Puffadore pet-shop, but they have the same stats as common pets.
And that's the thing; The current only way to get common species with 120 mana... is to manage to find and catch a 4-star wild of the species. And Puffadores... can't be found in the wild.

I dunno, I think when the pet shops got an overhaul a while back Krin said that the more expensive ones (like... super, almost absurdly expensive) might have boosted stats...
*goes on a hunt*
Taking a look at the Tamed Puffadores (which have to be from the shop, no other way to get a tamed one), there's a 2v girl with 105 mana, another 2v girl with 110... and 2v/2c boy with 110 who's up for breeding, and I shudder to think how much any of them cost their owners to buy (I wanna know... but the idea of knowing is terrifying)
I think they might be the only ones, I was looking from youngest to oldest, and a bit after the male I think I hit the pre-petshop-update section, because it was 80 mana everywhere.