Hello, this is my first post so pardon me if I’m not in the right section.

Why is my GSP not opening? I got this exactly 2 weeks ago and the second photo is now.

About 5 days ago, my clownfish kicked sand all over it so I dusted it off, then moved in about 5in closer to the front and away from the clown’s cave (should be a bit stronger flow), but now it doesn’t open.

Also, what is that green bubble?

Thanks everyone

Salinity: 1.026 SG

Temperature: 78.2°F

Alkalinity: 8.1 dKH

Calcium: 418 ppm

Tank Volume: 20 Gallons cube