I'm trying to use mangrove to reduce the nitrate in my 55-gallon FOWLR
I finally found a source and got 6 today.
It's hanging up there without gravel with open top. It's a bit close to my actinic blue light, and should not be affected by my other 20 W bulb on the other side at the front.
There's no root yet, and here's a picture of how it looks like:
Here a picture of my whole tank, not sure if it matters:
Now my question is really, do I need gravel while there are no roots?
Or is there anything wrong or things that i can do better with these mangrove?