Plant filtration and AP are essentially the same thing. A little more hardware. But from the big picture it's exactly the same. At least ways that's all mine is. The media holds the bacteria the same way the media in a filter does, the plants complete the nitrogen cycle. It's a no brainer.
The thread is around here somewhere though...rather than picking the hill to die on though I cowed out. But I am saying be carefull....some people are adament that it's about "balance" and not a green leafy filter. Eh...tomato potato or whatever it is.
Good to see your still here basil....how's everything?