Id brown non stringy algae.

[baslewprime]

Id please?

no3 10ppm
po4 0.024 ( I have to dose neophos )
tds zero.

I haven't changed my Di resin for almost a year.

 

[Bret Brinkmann]

Looks like diatoms. I'm guessing your tank isn't more than a few months old?

 

[Hemmdog]

Diatoms, time to change your RODI filters.

 

[baslewprime]

Looks like diatoms. I'm guessing your tank isn't more than a few months old?

1 year and 3 days.

Why do i have silicates in 0 TDS ro/di water?

 

[baslewprime]

Diatoms, time to change your RODI filters.

silicates in 0 TDS ro/di water? Can be that possible?

 

[Hemmdog]

silicates in 0 TDS ro/di water? Can be that possible?

You said you haven’t changed the di resin in a year though. I’d question your tds reader.

 

[Quietman]

Maybe...I have 7 stage rodi, tested for silicates 0 I thought I read that they could still be present in low concentrations somewhere. Who knows I read lots of things. I still got a small diatom bloom. A year does sound like a long time though, must have pretty good water in...or a really bad TDS meter.

 

[Taylor S.]

Diatoms. Just change your rodi filters. I change mine every 6 months for maintenance.

 

[Bret Brinkmann]

It could be from the fish food.