Check the variant of axolotl inside the bucket by using a command.
When you bucket an axolotl, plugin will add lore to bucket.
You can disable this in config.

Depend:
PlaceholderAPI

Command:
/bucketaxolotl - Add lore to the Axolotl Bucket in your hand.

Permission:
BucketAxolotlColorView.AddLore: Access /bucketaxolotl command and can add lore when bucket an axolotl.