What's missing?

[Sarpijk]

Hi all, in an attempt to rescue some of my "rare" bucephalandra I put them in a Ferrero Roche plastic box. The soil is Aquaforest substrate. It has been growing for about 4 months. I am afraid to use Osmocote, in the past in a similar setup I believe I burnt the roots by using it. Do you reckon there is a deficiency on the plants? I feel some new leaves are yellowish.

 

[Onoma1]

I used Another World TerrariaI tutorials to build my boxes. I think the addition of micro fauna helped as did a very coarse substrate. I found it really difficult to balance the environment for buce.

 

[Sarpijk]

Quick update. The only one showing some good growth is the Bucephalandra Skeleton King on the top of the picture.
They all seem to have rooted quite well.

Any suggestions for fertilizer?

 

[tam]

If you have a well fertilised aquarium, you could flood it using water from that, then drain the water again.

You can get fertiliser sprays for house plants, which are presumably diluted to avoid burning leaves - I've not used them personally though.