I pulled mine out, but I must admit did not pay it the attention it deserved.
As with other plant intensive aquascapes, they look good for a short period of time and require regular maintenance to keep them in prime condition, sometimes looking like a complete mess for weeks after trimming until they fill out again, or growing so fast that you get sick of looking after it. And then you forget to change the lamps or water regularly or under/overdose ferts and then the algae sets in... :evil: