These fish may not be big, but they will attack an enemy fish even if it means death to themselves. Real plants offer great advantages to an aquarium. They help complete the natural cycle that fish have in their home environments. Some plants need an immense amount of light to flourish while others need minimal light. Usually an Aquarium shop will note what light exposure each plant needs.
Plants also grow great in a gravel and sand mix.
Gravel can be purchased at your local aquarium shop and sand can be purchased in Menards or Home Depot . Also, some fish like Oscars rip out plants while they play, make sure your fish does not do this. Here are some of my common recommendations if getting plants. Get appropriate lighting. Florescent bulbs work the best.