Need help with white stuff on live rock during cycle.

[iced]

Hi,

I have recently bought a 66 gallon tank. I am 5 days into the cycle with around 20 to 25 kilos of live rock.

I have notice this white stuff on the rock moving with the water flow, plus a worm looking white object on the rock.

Any ideas would be greatly appreciated?
Benjamin

[bnumair]

Welcome to RC Ben.
without pics its kinda hard to guess what it could be. saltwater tanks and rocks are very lively some good some bad critters so for best response post a pic.
good luck