I could try pothos on my upstairs tank it gets a lot of natural light. My basement tanks would require external lighting I would assume. I'll see if I can work something out. Thank you all.May I ask why live plants are out of the question?
Putting some pothos in a sump or otherwise empty HOB would be an astoundingly good way of sucking no3 out of the system.
Short of something to absorb the no3 (plants) or a drip system, there's not really much you can do.
I read that thread. What were you referring to that works well?http://www.seachem.com/support/forums/showthread.php?t=7240
This works very well and isn't expensive.