Very nice nems brotha , nems will acclimate themselves to the surroundings they are comfortable with , no two are alike , I have a few nems and one likes to stay on the sand bed, one loves the high back glass and the others like to move around along the mid to low areas of my tank.
It all depends on them. They stay where there most comfortable. I have 2 out in the open. 1 that stays under a rock. Then I have 1 inside a rock. They don't move too often now that they are set
IF the nems are moving make sure to turn off or lower the power on the powerhead. They can get caught and make a mess in the tank. Once you see they have settles you can resume with powerhead.
Got a decent pic of anemone and clown ,the top one is doing good exept the green is getting lighter i think its cause its closer to the light,sucks cause the bottom one has a really nice green