What in the world jusr happened?

[Notsolostfish]

Came down to check on my tank, redsea all bottle looking like this and literal rocks inside it its the redsea alk bottle. What happened here

 

[The Wannabe Reefer]

The lid was closed too tightly; it needs air.

 

[Notsolostfish]

The lid was closed too tightly; it needs air.

What about the crystals thing formed like rocks