Originally Posted by marty_wolff
do i want to add live rock after i have everything set up or does it matter?
I would add it now. It can help your cycle and will give you more nitrifying bacteria, in/on the rock.
Remember, live is really talking about the nitrifying bacteria. As long as you don't have huge swings the LR
/sand will be ok. At this point (since you are cycling) I wouldn't worry too much about a skimmer.
The white dots are probably "pods
" which shows a sign of a cycling tank. They will move to the LR
and borrow around in the sand and grow....good stuff there.
The dusty film could be diatoms, is it on the sand too? This is also another good sign.