I have a bloodred felis I'd like to change the species on, but not the color. Is that possible, and if so what should I use?

I don't think it is possible. People try to use the species potions, but that turns the pet back to common.

It is possible, you need to use a Miracle Potion II.

[item2=Miracle Potion II]

Ah ok. Thank you!

What are you planning to change the species to? Sometimes Bloodred (Species name) Elixirs are a cheaper solution :)

Either a paralix or a tigrean.