Something is up with my Monti...

[tr1gger]

Can anyone tell me what this purple slit is on my Monti? This coral has tripled in size and is my favorite coral in the tank! This purple discoloration was not there 24 hours ago...

 

[zeroinverse]

Red planaria? Does it move and/or look like a flat translucent jelly-like "flatworm"?

 

[tr1gger]

Red planaria? Does it move and/or look like a flat translucent jelly-like "flatworm"?

Does not move and is not jelly. Its appears to be the coral itself just discolored? Could it be a sting or something laying on it over night?