help!! my anemone only comes out at night!

I need some help! I am a newbie. I got a bubbletip annemone about 1.5 weeks ago and it only comes out at night when the lights are off. When I turn the lights on in the morning it gets short and stumpy. I read it will find its own spot but has never moved since I put it in. It planted it's foot right away. My salinity is .024 ph is 8.0 everything else is 0. I have a 29 gallon tank it sits on live rock. I feed it twice a week. I have 120 watt blue and white led box dimmable hanging above the tank 7 inched from water and 17 inches from the live rock and anemone. It. Doesn't hide all the way inside rock but it just gets short and bubbly instead of letting it's tenticles stick out for my clowns