White spots on inside of fish tank

[Jrush11]

Have had my 10 gallon tank for about 2 months now and I just recently noticed I have white spots on the inside of my tank. They are mainly on the lower half of my tank and they move with the water. What could it be?! Help!

 

[Jrush11]

Thanks for all the help... None...

 

[TotallyCoral]

Sorry we couldn't shoot a response to this earlier but have you tried scraping it off?

 

[bob mccoy]

they are little peracites that will not harm adult fish. although they will sting baby fry and possibly kill them. you can buy a peracite killer or i just scrape them off and vacume them out when i clean my tank. most things like that are from dirty water or not vacumeing the gravel or over feeding