By "fish" you probably mean Koi.To get a Koi you can buy an Orange Koi Morphing Potion You can use the SW (shop wizard) and buy it for around 47,000-50,000nps. Just have any of your pets drink it and they'll be transformed into an Orange Koi (and you'll also receive an avatar IF you haven't ever used a morphing potion before)
wait until lutari day and he will be a limited edditon pet or use a morfing potion
with a paintbrush, morphing potion, or secret laboratory map...or Boochi which is a random event.
Pet Pet Park is in Neopets world where your Neopets can play and buy their own pets.
In Neopets, neophobia refers to a pet's fear of trying new foods. You can get neophobia by feeding your pet an item that they are not familiar with, which can cause them to develop this fear. To help a neophobic pet, you should gradually introduce new foods by first offering them items they already like or are familiar with. Additionally, you can use the Neopian food item "Neophobia Potion" to help cure a pet of this fear.
If you transform your pet into another species, then of course you can!:) But if you use a transmogrification potion (mutant neopets) or use a morphing potion that is a colored pet then you will change the color. Some colors, including pirate, Christmas, and Halloween can be applied onto the pet, then you can paint another color on to have a overlapping effect because there are separate wearable items attached to the color.
Neopets is a virtual site where you can have your own virutal pet and take care of it like a real pet. Therefore it is there. ;]
The Neopets game? No.
Neopets is a good virtual pet game.
This potion heals your pet a random amount of HP. :)
A petpet. A pet for your neopet.
Some neopets can only wear certain clothes.
You will get that by buying a love potion in the Market