Floating plants
Floating plants shade the tank, strip nitrate quickly and give surface-dwelling fish somewhere to feel safe. They also spread fast and dim everything underneath, so expect to scoop out a handful most weeks — that removal is the nitrate export.
Why these
Grows at the surface.
7 species

Amazon Frogbit
Limnobium laevigatum
↕ 5 cm · 18–28 °C

Duckweed
Lemna minor
↕ 1 cm · 10–30 °C

Floating Fern
Salvinia natans
↕ 4 cm · 15–30 °C

Guppy Grass
Najas guadalupensis
↕ 100 cm · 15–30 °C

Hornwort
Ceratophyllum demersum
↕ 100 cm · 15–30 °C

Red Root Floater
Phyllanthus fluitans
↕ 3 cm · 22–28 °C

Crystalwort
Riccia fluitans
↕ 5 cm · 15–30 °C
Which of these go together?
A list tells you what is possible on its own. Whether three of them share a tank without one eating another — and whether your volume, temperature and hardness actually allow it — is what the planner works out.
Open the planner