Algae ID microscope photo

[SecondCityCorals]

Best I could do. Had to take manually with my phone pointing down the scope.

These popped up one day and I can't get rid of them. I have a nitrate sulfur reactor and GFO. I've been trying out Phosphate-E too. My phosphorus reads anywhere from 0-2 PPB and my nitrates are 0.

 

[Hans-Werner]

These are diatoms.

 

[SecondCityCorals]

Thanks. I figured as much but wanted to make sure. Brand new RODI filters failed after 5 months. Water didn't even come out 2 TDS and my phosphorus level skyrocketed to something like 35 PPB. Hopefully it goes away soon.