Carpet Question

l.i. geo

Member
I have two green carpets. i have a 14" and a 8", the bigger one is doin fine. but the smaller one stays contracted during the day and open ups at night.it doesnt stay fully contracted but all the tentacles stay very tight together and it only expands a quarter or half way during the day but at night it fully expands, can someone tell me why? and if i should do anything. my water parameters are excellant. i have good water movement. the lighting i use is metal halides and t5s, please help
 
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