WTB low light plants for hiding filtration, etc - Phoenix, AZ - shipping or pickup

I have a 20 gallon tank wth only 18 watts. I think it's 5500K, or 5000K, dn't remeber. I know it peaks in both red and blue, but I don't know a whole lot about lights. Substrate is red flourite chips. Nutrafin CO2 system. TEmp about 80-81.

I currently have 1 piece of driftwood, 1 crypt (don't know which type, it was a freebie), 1 anubias nana, 1 anubias nana narrowleaf, 5 dwarf swords, 1 pott HC dwarf baby tears (would like to trade out for dwarf hairgrass), hornwort, and water sprite.

I'm looking for some thick plants I can use to place in front of my HOB filter intake and CO2 system, and around a sponge filter, to hide them. I need low light, and preferably low maintainence.

Do you have any ideas?

PS- I don't normally ship aquarium stuff, so you may have to help me through the process if you wish to sell to me :huh:

I am looking into upgrading my lights a bit, because I know they are very low, even for low-light plants. Just let me know what you have available, or even if you don't, what kinds of plants I could look for. Thanks!

severum mama, do you have a picture of the java fern? It's the one I see as being most likely to hide things. Also, do you have a cost in mind?