White stuff on my LR

[pearsont74]

What is teh white stuff that is on my LR??? when i wave my hand over it blows away like a web/film but comes back.
Hopefully the cleaner shrimp and mexican tubors will clean it up cause its nasty looking

 

[Fluff]

Sounds like die off. Is your tank still cycling?

 

[pearsont74]

i thought is was done....but the rock has only been in there for 2 weeks.