White marks on live rock during cycling?

[doublee]

Hello everyone!

I wanted to seek your advice on an issue I started to observe during the cycling period of my first tank.

I am in Day 5 of cycling (using Dr. Tim's) and started to observe white marks occuring on the live rock (which I bought it from someone and transferred into my tank before cycling). Should I be worried about these white marks or they are normal? Most of them are "spots" but there seems to be some that look small "lines." (pic below)

Many thanks, in advance.

Cheers!

 

[monkeyCmonkeyDo]

If you bought live rock already cycled you had no need for dr. Tims. Your synthetic fresh mixed sw was cycled with the live rock die off.
D

 

[monkeyCmonkeyDo]

spionid worms