have a pin cushin urchin and ive had it for for bout 3 of 4 months. Today ive noticed it turning its self upside down. Is this normal? I'M currently out of test strips to test my water quality, i checked it bout 4 days ago and everything was perfect. It isnt losing spines and it is actually growing some back from thoes that fall off from my LR
. The spines are erect and are laying flat down. Any Ideas?