You would ask... LOL
These are pics I've collected from various places for inspiration:
Echinodorus angustifolius 'vesuvius'
Vallisneria nana:
OR
E. angustifolius:
E. tenellus 'narrow' (carpet plant, these are some of the actual plants since this is my 10gal I will be pulling from, that cory cat (Corydoras schwartzii) will go over, too

)
E. 'Indian red'
E. 'Kleiner bar'
E. parviflorus 'tropica'
E. 'Red Rubin'
Oh yeah - Frontinalis antipyretica (Willow moss) will go on the Manzanita driftwood
Didiplis diandra (Blood stargrass)
Bacopa caroliniana
Cabomba furcata (on the left)
This tank has the only pics of E. africanus I can locate ATM, they're in the back (I'm buying them from this owner, I REALLY like this tank

):