yea, the duckweed will be a problem later on. I would get more plants in your tank tho.. try getting some Anubias, they are very easy to take care of.. nice setup btw..
duckweed reproduces very freakin fast(had to remove twice as much as i first got from rachel, got it about 2 maybe 3 weeks ago)
arrrrgggghhhhh
any way rachel were can i get some crypts or dwarf sag
especially the sag. i saw pics and i like it