Ricordia feeding?

[Noturaveragereefer]

Is this a feeding move? Or an indication of needing more light? Although the coloration is great...

 

[Phranque]

Mine do that every once in a while for no particular reason...... could be that it caught something to eat.

 

[Holygral]

I have a tank full and never feed them, they also grow in all types of lighting