Can I get an ID? Thanks!

[Keko21]

Who’s up to snuff in their microbiology? I had amphidinium dinos starting to pop up and silica dosed to 2ppm w sponge excel. This has “successfully” rid my tank of dinos in the past (intervals of 6-7months dino free then they pop up again even if nutrients are stable). But the pictures here I do not believe are dinos, at least not the ones im familiar with. I think/hope this is diatoms, which makes sense logically, but the are aggressive ! And they recede at night…

Thoughts?

 

[Lavey29]

https://www.reef2reef.com/attachments/dinoflagellateid12_12_2019-pdf.1324729/

 

[Keko21]

https://www.reef2reef.com/attachments/dinoflagellateid12_12_2019-pdf.1324729/

Yup i love this resource but unfortunately the above does not match anything.

 

[Lavey29]

Yup i love this resource but unfortunately the above does not match anything.

Might be good news then I have something similar. Patches here and there occasionally. Does it disappear at night?

 

[Reeflix]

I would say you have diatoms. For what I can see this is what it looks like to me