I have had great success with Fox tail. It is a bushy plant with long stems, and it does get up-rooted from time to time but never torn apart. My axies hang out in it all the time it is neat
. I plan to get some rocks to weight them down soon. Right now I just have rubber bands loosely tied around them holding them in place.
It grows very tall, so it is a plant that needs to be placed in the far back of the tank. It also grows wide and adds depth.
Here is a link to show what fox tail looks like:
http://www.aquabotanic.com/plantsandfish.htm
Scroll down to the bottom of the page.
Jave moss - It hasn't died, it is still green, but it seems to grow really slow. Easy to attach to decorations, rocks etc. with rubber bands.
Anacharis I have also had success with, this plant is a real biginners plant. It grows a week root system, and also needs rocks to weigh it down, but it is very pretty and grows very tall. Also a background plant. The name escaped me before, but after doing a search I was able to find it
.
Duckweed - I really think duckweed is very pretty, but it is so messy. I always have to keep about 2cm of water over the spray bar else the duckweed gets under toed and attaches into the fox tail. Duckweed grows like a weed, and a small amount will spread over the entire surface area of your tank in a matter of a few weeks or days. Duckweed is good to offer cover, but is terribly messy and when it dies, it clogs up the intake tube of filters and just sticks to the glass.
I still have a small amount of duckweed in my tank, but since I have had my light on over my tank, my axolotls have become so used to light that they do not hide from it, even though they have plenty of dark hiding places. They love to just sit out in the open or hang in the plants
. I've thinned out the duckweed population greatly lol.
Plants that I have not had success with are Red Ludwigia, which was my fault I think. I probably could get a greener one and have more success with it.
Another is Aponogeton. It is a bulb plant that comes in packages at pet shops or Wal-mart and is a grass plant. Reason being unsuccesful is because when I first started out with I think 9 bulbs, they grew very long beautiful bright green grassy leaves. My Axolotls kept nipping the leaves off, only god knows why, and the plants always remained very short and were not getting anywhere in growth. I removed them from the tank and put them in a container of declorinated water in the window. Sacramento has not gotten a lot of bright sunny days these past few months, and the bulbs rotted and I had to throw them out.
Pointers - I'm going to try and get the bulbs again, but I have some ideas. I think what I will do is set up my 10 gallon tank with the light over it. I'll keep all bulbs and sprouts in that tank until they are big and can be moved to the axolotls tank
. 
