duckweed?

  • We are currently upgrading MFK. thanks! -neo
Lemna trisulca is prettier than Lemna minor.

And you can "aquascape" it because it is 3D and lives underwater. Make mounds and clouds etc... They stay linked together so you can pull out huge masses rather than having to swish around a net OR siphon it.

It's also pretty easy to grow.
 
MonsterFishKeepers.com