Plant only filtration (why not popular in the hobby???)

[amazontank]

I got to mention I breed plecos so I have low light and not to much plants.
My couple tanks I do have plants mostly java moss & marimo balls the nitrates are always non existence!

 

[eon aquatics]

My paludariums plants are growing very well.
If plant filtration works in there *perfect*.

 

[eon aquatics]

The roots from the pothos and the other plant are growing into the water and soaking up a good amount of water. IDK the name of the other plant it looks kind of like a red hill but its some other kind.