Anubias...

[bogwood]

Does Anubias need a substrate to root/live, or can it be attached to rock pieces (like Java Fern)?...

Can Anubias live 'out of' water (but in a humid, lit environment?)...

I'm changing a tank around and for visual interest, was thinking of lowering the water level so the tops of any rock/slate pieces show 'above' the waterline... and attaching some Anubias to the exposed rocks...

 

[George Farmer]

Most Anubias sp. does best attached to decor. It also grows emerged (out of water). Check this out - http/www.fishforums.net/index.php?showtopic=121897&hl=

Your plan sounds interesting.

 

[Puffer punk]

Can Anubias live 'out of' water (but in a humid, lit environment?)

yes is can

 

[bogwood]

Most Anubias sp. does best attached to decor. It also grows emerged (out of water). Check this out - http/www.fishforums.net/index.php?showtopic=121897&hl=

Your plan sounds interesting.

Will Java Fern and Java Moss survive/grow 'emerged' too?...

I ask as I'm setting up a Tanganyikan Shell Dweller Cichlid tank... 'Shellies' live almost exclusively at the bottom (where the shells they live/breed in are) so in my 20UKG which is quite high too, there will be a lot of 'empty' upper water layers...

My thinking is... lowering the tank water level, thereby exposing the top 'third' of any rock/slate pieces would visually 'fill' these empty layers... and with a few small Anubias, J. Fern and J. Moss growing on these exposed rocks (as well as in the water itself), I'm hoping to end up with a complete 'above and below the water line' environment....