How to get a Fire petThere are many ways you can get a fire pet.
Fire, Fire, Your Pants on Fire Paint Brush
You can buy a Fire, Fire, Your Pants on Fire Paint Brush and use it to paint your pet fire. These paint brushes can be found on the Trading Post and cost around 800,000 neopoints.
Morphing Potions
Currently, there are twenty-six morphing potions that will make your pet fire! Morphing potions change both species and color (unless your pet is the same species as the morphing potion), and they're usually very expensive.
Lab Ray
You may be lucky enough to get a Fire pet from the Lab Ray! To visit the Lab, you need to collect all the Secret Laboratory Map pieces.
Magical Plushie
By playing with a Magical plushie, your pet will change to the species and color of the plushie! Be sure the plushie you are buying is a magical plushie, regular plushies will not work!
Fountain Faerie Quest
If you are lucky, you might get a quest from the Fountain Faerie! If you complete one of her quests, you can go to her fountain and paint any one of your pets any color you like (including Fire!)
Flask of Rainbow Fountain Water
Drinking a Flask will change your pet into a random color! You might be able to fish up a Flask of Rainbow Fountain Water at the Underwater Fishing Cavern! After around level 80, this become available. These are very rare, so do not count on finding one!
The Pound
If you are lucky and quick, you might find a Fire pet in the pound! (Note: Pound is currently down for maintenance, this method will not work.)
Own a Fire Blumaroo and give it a Fire Petpet for 30 days.
Visit a Fire Pteri's lookup. 
Put a 'Fire Paw' in your Neodeck.
