Amazon Swords

[goldencomet]

Some of the leaves on my amazon swords are turning a light green and if i put my finger at the other
side of a leaf i can see through it.
They are in sand with laterite.
Will the tetra plantamin sought this?

 

[rockerBOO]

Probally lacking fertilizer in your water. Tetra Plantamin looks like it would help with your micro nutrients, but you might need some more for your macro nutrients.

 

[goldencomet]

what could i buy for the macro nutrients?

 

[Castellop123]

Seachem fertilizer range... maybe ...

 

[jordan.m]

On http/yourfishguide.com/Echinodorus_bleheri it says

For the most beautiful Amazon Sword Plants, a loose substrate and an iron-rich fertilizer must be used.

Jordan