Plastic Plants

Plastic and silk plants are fine - silk can look more realistic.

What real plants are you trying? I ask because I'm someone who can't keep most plants alive, though I can grow java fern and anubias. I have java fern growing on my decor and also silk plants for height and variety. Live plants do have benefits in a tank so if you could manage to keep java fern alive, it would be a bonus. Java fern has to be grown on decor as the roots rot if planted in gravel/sand.