Dino or diatom id

[Jwill1316]

Hey everyone was hoping to get some help on ID this. These are the best and closest shots I can get with my microscope to. Have had a complete bloom in my tank. They typically will disappear at night and come back as lights ramp up. Tank is almost 6months old and have been fighting 0nitrate 0phosphate in this tank. I did use dry rock with live sand. Paramus are as follows
Nitrate 1ppm
Phosphate 0 or barely detectable
1.024 salinity
Alk stay between 8.0 and 8.1
Ph 8.1
Temp 78
Mag 1468
Calc 460 any help on I'd so I can know how to treat. Or if I should just leave it alone

 

[SlugSnorter]

looks like dino to me

 

[Troylee]

Hard to say.. how old is the tank? I’d lean more towards diatom because Dino’s are a thick mat! That looks more dusted but can’t tell exactly without a microscope

 

[Jwill1316]

Hard to say.. how old is the tank? I’d lean more towards diatom because Dino’s are a thick mat! That looks more dusted but can’t tell exactly without a microscope

Tank is almost 6months old

 

[Troylee]

Tank is almost 6months old

It’s possibly Dino’s then.. a uv light will help a lot if there leaving the sand at night.

 

[Jwill1316]

It’s possibly Dino’s then.. a uv light will help a lot if there leaving the sand at night.

Ok