They say you should wait a year to be safe but I cannot confirm the need for this. Nems, require consistently great water matching NSW parameters, moderate to strong lighting in the correct spectrum, and low to moderate water flow. They can be feed once per weak with a small fingernail size piece of shrimp, or fish touched lightly to the mouth.
Since it is attached to a piece of live rock and has inflated somewhat, I am not sure what you mean when you ask if your nem should look this way. What makes you think something is wrong. I am not sure what a bubble on the left side is.....is it a bubble tip....a long tentacle....a carpet.....