Help Me Identify Coral Please
 

What is this coral called? It's yellow.

spaghetti leather coral (soft coral)

Agreed yellow leather coral.
These grow quite large and are easy to frag, they like alot of iodine added to the tank.
Low light and easy to grow.

A lot of iodine added to your tank can kill everything. Any time you supplement a trace element you should be testing for it as well.

Its probably from the genus Sinularia but I'm not great at IDing soft corals. They are very adaptive to various lighting and flow combinations.