Diatoms, Cyano?

[dbroncos]

Hello looking for some opinions on what is growing on my live rock. 150gallon tank 5 months old, used TBS sand and live rock. Nitrates 10, Phosphates .03. Here it is under the microscope and a video. i
View attachment 20251108_110702_C609C886-31DE-45C2-95AA-3D8950873DB8.mov

 

[dbroncos]

 

[dbroncos]

another pic

 

[EllWay]

One way I found out it wasn't Cyano is I used ChemiClean for Cyano and it didn't work. LOL What has helped me (algae, diatoms) is I bought a UV-C filter and I killed the lights for a few days (nems are mad! oh, well. They will be fine) Good Luck! Try a UV-C. It should help

 

[dbroncos]

So I do have a UV on the system just trying to figure out whether or not it is cyano, diatoms or dino’s.

 

[Randy Holmes-Farley Verified Community Expert]

Movie is too blurry to tell much, but it doesn't really look like any of those to me.

Can you take an ordinary picture in white light?

 

[Kmst80]

I don't think it's diatoms or cyano. From the microscope picture I would research chrysophytes and coolia. Can't help much with it, never had it.

 

[dbroncos]

not sure if this is better?
View attachment 20251108_174023_FEDF6DC9-DC1A-4939-95FA-3302112BBA75.mov

 

[dbroncos]

what to do for chrysophytes? let it ride out? I’ve tried blowing it off with very little success and leads to a bacterial bloom.

 

[Dan_P]

Hello looking for some opinions on what is growing on my live rock. 150gallon tank 5 months old, used TBS sand and live rock. Nitrates 10, Phosphates .03. Here it is under the microscope and a video. i
View attachment 20251108_110702_C609C886-31DE-45C2-95AA-3D8950873DB8.mov

Google chrysophytes for comparison.

 

[dbroncos]

Hello looking for some opinions on what is growing on my live rock. 150gallon tank 5 months old, used TBS sand and live rock. Nitrates 10, Phosphates .03. Here it is under the microscope and a video. i
View attachment 20251108_110702_C609C886-31DE-45C2-95AA-3D8950873DB8.mov

Google chrysophytes for comparison.

thanks i definitely think it is chrysophytes. Just trying to figure out what to do if anything.