Brain drastic changes in size.

[240gallons]

Hi all I have had an open brain dor about 6 weeks and it seem to fluctuating in size quite a bit. One day its all puffed up and another its shrunken down to the sheleton. I woild say it doubles in size when it fully opens. Normal?

 

[reeftivo]

hows the flow? Strong? moderate?

IME they do not like a lot of flow and moderate lighting.

 

[Rxp]

keep an eye on the other tank mates.I had a foxface that would pick on mine to the point I had to bring it back to lfs.My next door neighbour has 2 clowns that use an open brain for shelter at night