The Splatterladder created the "standard" clantags, like the tags in brackets [] etc., automatically. So you can manage your clan in the Tracker Settings.

Please tell us if your clantag does not exist on Splatterladder. We will create your tag in order that you can manage your clan.
To provide you with a fast and helpful support it is mandatory that you you give us the necessary informations at the support forum.

please provide us with following details at the corresponding pinned topic "Clantag - Register/Questions - Topic":
- clan tag without color codes
- clan tag with color codes
- link to your player nick or the player who should be assigned to this tag

Link: sl.Support

Thanks for your understanding in advance!