Really hardy low light plants?

[Psylk87]

I have a 10 gallon planted tank. All of my water sprite keeps dying. So what are some good background plants I can use that dont get too tall or are easy to trim?

I am assuming my tank is low light. It has 2 6500k 10 watt ZooMed Ultrasun light bulbs in a standard hood. My substrate is Eco Complete.

I currently have :

Windelov Jave Fern (2)
Wisteria (4 stalks just starting leaves havent changed yet)
Amazon Sword (2 small)
Marimo Ball
Anubias Nana (2)
Cryptocoryne petchii (1 small)
Hygro Kompact (1)

What else would be pretty, fill out the tank, and add some nice hiding places? I would kinda like to have some other varities instead of getting more of what I already have but they can be from the same family.

 

[aqua_chem]

Crypts are the kings of hardy, and there are many species available. Wendtii, parva, and retrospiralis/spiralis are fairly commonly available but all fairly unique looking.