Day vs. Night polyp extension

[jason78]

Greetings everyone. All sps seem to be growing great. I am lacking some color but I am thinking this is due to the lights as all other parameters are perfect for sps.

I have some polyp extension during the day but at night they go crazy. About three times the length of extension after lights out.

My question is what do you think this means? Should I have the same day and night?

This is an older pic just so you can see the light setup. It is 4 x 150watt 15k xm bulbs

 

[thedasher]

I think it's because they eat at night because this is the same with chalices, no tentacles in the day but fully extended ones at night.

 

[phenom5]

Pretty typical to have more PE at night. The only thing I would be concerned about would be if you have any fish that are known to nip at SPS.

 

[jason78]

Awesome thanks for the fast response. Nope no known fish.