Hey I need help I forgot a letter in my hatchlings name does anyone know how to fix it? the philter of amenia won`t come up

You can't change a name without a philter of amnesia, unfortunately.
You can buy a philter of amnesia with 500 scales in the scale shop,
If you don't know how to get scales, you get them by nurturing pets (your pets or other people pets). 1 pet nurtured = 1 scale.
If you don't have enough scales and don't want to have to nurture 500 pets, you can look at the trade broker to see if someone is selling one.
(There is currently one philter of amnesia costing 10K gold in the trade broker. It's a good price, they're often more expensive)

I have the philter of anemia it wont work on my hatchlings

If I'm not wrong, philters can't be used on hatchlings, unless they have been genetically tested.

So you'll have to wait for your pet to be at least an adolescent before you can use the philter. Otherwise, you can get the pet tested. If you don't have a test kit, you can look around in the breeding forum. There are players who offer free testing services there.

If your pet is already tested, and the philter is not appearing on the pet's profile even though you have it, then you might want to post in the bug forum.

thank you

Sorry, I didn't get you already have the philter, yes then it may because it's a hatchling =) (I didn't know it may not possible to use the philter of amnesia on at hatchlings since the philter of amnesia is quite different from the mutators or other types of philters, and I don't think I ever had to rename a hatchling...)
Wait until your hatchling grows up into an adolescent or an adult and see if work then =)


Edit: I have a test kit, i can test it for you if you want to see if you can rename it after it has been tested =)