Hi again. As I said few more photos. Please help me to choose the best background. Scape is now 14 days old

Glosso filled in a little. Today I began fertilizing - 0,3ml of TMG.
raven_wilde I thought of course about male guppies, but they are no longer actual

Rasboras will be probably hard to buy...

But what do you think about
Paracheirodon Simulans? And here are the photos of the tank:
