White Spots

[jacpr233]

I guys I woke up this morning and I noticed white spots in my rock and driftwood. It wasn't there last night. It happen overnight. I don't know what it is.

Can anyone help??
Ps. I have a planted tank with 50 fish and 2 zebra snails

 

[Samzter]

What size tank? It could be white spots and could affect your fish.

 

[jacpr233]

I have. 72 gal tank with lots of plants.

 

[jacpr233]

This is the tank