Yeah, I'm sure I have phosphates along with my nitrates. I've been battling to eliminate nitrates and algae for the better part of two months now. I just can't do a large enough water change at once :| I only have an 18g bucket. Even when I do that every other day for a week I still can't get it below 10ppm. And if I let it go for a week it will be back up to about 20.
I dunno, I might just use the chemi-clean again. It cleared all of my algae last time (but is also the reason for a nitrate spike).
The algae is growing faster than my rather large sized clean up crew can get to it.
Maybe I can use the chemi-clean a couple of weeks in a row to get the algae all gone and then do a bunch of pwc
's (maybe daily) and get it under control that way.