Tough Green Algae

[dankolle]

Guys,
I have neglected my aquarium while moving houses over the past 4 weeks. I have a green hair algae issue, but I am removing that and dealing as best I can. However, I have a green algae growing on my glass that is really hard to get rid of. I have a scraper tool and that barely takes it off. What is this stuff? I have read it is "green Coraline" on some sites but I'm not sure. I forgot to mention that I have been doing water changes over the last week and my levels all read "0" (nitrite, nitrate, ammonia). I know they probably read 0 because the algae is eating them right now, but I need to figure out why this is an ongoing issue...

 

[sen5241b]

FIRST: Test your source water with a TDS. Is it really TDS zero?

 

[dankolle]

I'm RO/DI-ing well water, so it goes in around 590 and comes out between 2 - 4. So it's not 100%, but it's the best I can get.

 

[Ashna]

mmm i get that 2 but as soon as you notice that its turning green i scrub it off :)