Dinos or diatoms ?

[JDReef101]

Curious on whether I should add my clean up crew don’t want to add them and it ends up being Dino and they die. They do have bubbles but nothing stringy and the bubbles stay even when the lights are off. Tank is about 6 - 7 weeks old with two zoas and a pair of clownfish.
Last parameters were
Phosphate - .13
Nitrate - 9
Ammonia-0
Nitrites - 0
Kh- 9
Salinity 1.025

 

[Gumbies R Us]

How old is the tank?

 

[JDReef101]

How old is the tank?

6 weeks going on 7