what plants are easy to trim?

[Murder]

Duckweed's easy to trim—just scoop out what you don't want. But good luck keeping it under control, haha. That stuff spreads like wildfire.

True story. If you're gonna mess with Duckweed, be ready to scoop it weekly. It's like the glitter of the aquarium world.

[folkyd]

If you're into floaters, try Frogbit instead. It's easier to manage, and the roots look awesome. Just trim the roots if they get too long.

[dawnings]

Frogbit's a solid choice. Salvinia's another good one—it's easy to thin out by hand, and it doesn't go nuts like Duckweed.