Piscine Fangs: The number one way to obtain them?

Title pretty much says it all; what's the best way to get Piscine Fangs? I've tried Trenya, and I've also tried killing Cephalos', I /really/ don't want to kill Cephadrome because it takes too long. If I have to, I will, but I'd like to avoid it.

Any other good ways?

Unless you want to fight plesioth you are stuck with cephalos/cephadrome
good luck

You can get them from Cephalos/Cephadrome/Plesioth. Killing plesioth just for piscine fang is a little bit stupid because you'll end up wanting to throw your psp on the wall... So go kill a ton of Cephalos and Cephadrome in the desert and there you go :P
Also you can get them by sending trenya to the desert for 300 pokke points...

Edit: Cephalos barely give any so I guess you are stuck with cephadrome :/
Remember to bring a lot of sonic bombs!

I've sent Trenya out a few times already, and I even got a Wyvern Flame Fluid or whatever, but no piscine fangs. Looks like I /am/ stuck with Cephadrome. I've only fought it once, but I have three fangs. Lucky me, I guess. Sucks that I need one more though. In any case, why do people think Plesioth is so bad? I mean, is it /really/ that much of an inconvenience? I've never fought one, so I wouldn't know, but I mean... A lot of people revere it as being 'too difficult to go fucking around with for piscine fangs."

Plesioth has a lot of broken hitboxes. That means that if you almost get out of the way of one of it's attacks , it will still hit you >.>
It wouldnt be so hard if it wasnt SO broken....
And really , piscine fangs arent so hard to get... As you said you got 3 with one cephadrome run , just do one more and you are done.... Cephadrome drops a bunch.

Spoiler:

Is not that bad if you have good timing exept that if you mess a little it will get your life really down

Welp, I managed to get it. Turns out Cephadrome is extremely easy to kill if you just use small bombs, and Demonize special combos.