Very Poor Polyp Extension...Why?

[reef 'n ale]

It's coming...:lol:

 

[stylolvr]

In Calfo's book 'Book of Coral Propagation', he suggests that PE is not neccesarily an indication of coral health. His argument is that they extend when they are "hungry", but if everything else is fine (color, growth, etc.) that they may just not need a lot of extra suplementation (food).

Just my .02