View Full Version : Yellow acros turned bright green???

11/08/2010, 06:19 AM
I have a couple of what were banana yellow acros in my tank turn bright green over the last week. Only thing that changed was I went from XM10K 250W SE to Hamilton 10K 250 SE (changed 9 days ago). Nothing else in the tank has changed colour. Acros are green under actinics as well so it is not just the halides making them look green. They have changed colours. N03 is almost undetectable (less than 1ppm) Elos and phosphate is undetectable Elos as well.

Anybody ever seen this?

11/08/2010, 06:26 AM
From what I know there are very few acros that will stay yellow, most turn green like you have seen. There are of course some exceptions.

11/08/2010, 06:56 AM
Interesting. They were yellow for at least 3 months and all of a sudden the change.