Aliasing equumamici → equum_amici
Link to alias
Reason:
This artist uses "equumamici" on DA:
http://equumamici.deviantart.com/
But his official name is Equum Amici as can be seen in title pic on his/her Tumblr, hence I suggest to use equum_amici in the future:
http://equum-amici.tumblr.com/
Both tags are currently active and used on e621.
Updated by user 59725