My trachyphyllia seem to shrink up more and more by the week. When i first got it, it puffed up like no other on the corner of the tank with very little par around 50-70 par. Then i moved it after 2 weeks to 130-150 par position with similar flow as the previous position. When i moved it i kept inpsecting it for a week and a half and felt that it didnt like it that place. So i moved it to lowe par position aroun 100 par. However it still shrinks up to the poin ti see the skin on the skeleton. My parameters are in check and where in check from the day i brought it in. No3 2-5 ppm , po4 0.08 ppm, salinity 35 ppt, alk 8.4-8.7, mag at 1480, calcium 420 ph 8.3-8.45