What Plant(s) Can't You Grow?

anything red
 
cabomba - slowly withered away
hornwort - thrived for a while but I forgot about its temp sensitivity (too warm) and it disintegrated
anacharis - same as hornwort
duckweed - my fish eat all of it. hungry hungry tetras.
 
Cryptocoryne ciliata seems to be very finicky.. It will grow for awhile, then just abruptly melt and rot away.
 
Well sometimes I can't grow stuff because my pleco carelessly knocks my scape down when I scape near his/her territory. I would also say Rotala wallichii...and it is because of my true siamese algae eaters...They love snapping some the leaves off..same applies for dwarf hairgrass -_-.. Overall once I get the plants rooted nice and well, it's all good...but I do have a tendency to hate getting my tweezers again and again because of uproot...meh, should get more gravel lol I'm planning to do 3 inch of substrate. It's much more convenient I believe
 
Anacharis always melts on me and causes destruction all over my tank. Duckweed always seems to get eaten or get sucked into the filter.
 
It won't work! I put it in my 3 WPG 5 gallon with almost no surface agitation. It doesn't grow. The only place it grows for me is in this pot outside. I threw bits in there and left it there, with muddy, filthy water. The population exploded.
 
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