PhpMyAdmin, CPanel And Remote Database

I've just purchased a second server of which I wish to use a database server for a number of my databases and I'd like manage it remotely (from the web server) via phpmyadmin.

I've configured my firewall and granted access to the web server on root@webserverip and also username@webserverip (username being just one of the database accounts I wish to grant access in order to test this). Accessing mysql remotely from the webserver now works on both accounts (via ssh and php).

However, having configured the phpmyadmin config file to include the ip (network ip) of the 2nd server I am unable to see the 2nd server when logged in to phpmyadmin. I just have the usual root@localhost and username@localhost.