See that's the problem I'm having, as you can see in my Flourish Nitrogen thread.
My tap has 5.0ppm nitrates so at least my top offs feed the plants
I read her book but don't remember. My guess is she used a layer of argonite or something in there. She only did water changes like once every 6 months but it was a very particular eco system where the plants out numbered fish and their bio load to a pretty big extent. She didn't use any additives like fertilizers either. She felt the decomposing fish waste was enough.
**Please keep this in your own thread.**
Saint's day eve said:how do u change your water?
Im doing mine now (12% or so) just thinking how everyone did theres. Im 3x a week on mine:
20-25 % saturdays
Whats your way of change?