inroducing softies

[daddy01]

Hi,
I am in the process of changing from FOWL to Nano softies and added Frogspawn which is doing alright for a week, so I added a Nephlea(spelling?) yesterday. It was opened up withing an hour, but to-day It has 'shriveled' up and is not extending? My water parameters seem alright Ammonia=0; Nitrate=0;Ph=8.2; salinity 1.023; lighting T5 with Actnic03 and a Coralife aqualight with 65W Daylight and a 55W daylight giving total of 120W the frogspawn and the Nephlea are in the midrange of the tank which is 21" tall but I have 3" substrate giving height of 18" deep.
I am new to this and thought that would suffice.
Jim