Are diatom normal when you switch to DSB?

[option720]

I did the switch about a week ago and ive got a diatom bloom on my new sand. At least i think thats what it is (a light green film thats covering my sand and it has some small bubble on it as well). I kept about ten pound of the CC in my sump to prevent a cycle i thought this would have stoped the Diatoms as well. what do you guys think it is?

 

[option720]

someone knows this.....

 

[up north hermit]

If it is green in color it is algae, if brown it is diatoms.
Either is quite common after setting up a new substrate, even if you seeded it with a bag of the removed CC (via your sump).
But if it is green, it is definately NOT diatoms.
Patience, patience........
HTH
Hermit

 

[nm reef]

May be either a minor diatom or algae bloom......fairly common when adjust the substrate.........should balance out fairly quickly........I wouldn't worry about it much if the system is stable and the clean-up crew is sufficient........