I would keep the current going, but that is just me..... I have heard people turn off all pumps and placing it on a rock the gently surrounding the nem with smaller rock, and they suppose to stay in that spot? I have never tried it.... I acclimate for a hour and place it on the sand.... The nem will move wherever it wants to be... In the first couple weeks/months it will move around.... A healthy nem will attach it self to a rock when it likes the spot..... When looking at nems look at the mouth, foot and color..... I would read up on that and get some understanding, if you don't already know.