Plant comparison
Amazon Frogbit vs Riccia Fluitans
How the Amazon Frogbit and Riccia Fluitans compare on care, size, water and temperament, and which plant suits your tank.
By Mike ElmiraUpdated
TL;DR, Amazon Frogbit vs Riccia Fluitans
The Amazon Frogbit and the Riccia Fluitans come up together a lot when people are choosing a plant, and they are close enough to weigh side by side. Both are happy somewhere around 20 to 28 °C and pH 6 to 8, so a single tank can suit either one. The Amazon Frogbit is the more forgiving of the two, which matters if this is an early tank, while the Riccia Fluitans rewards a bit more attention. In a low-tech, low-light setup the Amazon Frogbit is the safer bet; the other really wants brighter light to look its best.
Group compatibility overview
Excellent fit
Every key parameter overlaps and no major conflicts surfaced.
Temperature
- Amazon Frogbit20–30 °C
- Riccia Fluitans20–28 °C
pH
- Amazon Frogbit6–8
- Riccia Fluitans6–8
Hardness
- Amazon Frogbit2–20 dGH
- Riccia Fluitans1–15 dGH
Full attributes
Every parameter, side by side| Parameter |  PlantAmazon FrogbitLimnobium laevigatum |  PlantRiccia FluitansRiccia fluitans |
|---|---|---|
| Category | Plant | Plant |
| Origin | Central and South America | Cosmopolitan |
| Family | Hydrocharitaceae | Ricciaceae |
| Temperature | 20–30 °C | 20–28 °C |
| pH | 6.0–8.0 | 6.0–8.0 |
| Hardness (dGH) | 2–20 | 1–15 |
| Flow rate | Still to Low | Low |
| Max height | 3–8 cm | 1–3 cm |
| Difficulty | 1 / 5 | 2 / 5 |
| Light | Low to High | Medium to High |
| CO₂ | None | Recommended |
| Growth rate | Fast | Fast |
Frequently asked questions
Direct answers to the questions search engines and AI assistants surface most often about this species.
Can you keep Amazon Frogbit and Riccia Fluitans together?
Yes. Their temperature and pH ranges overlap around 20 to 28 °C and pH 6 to 8, so one set of water conditions keeps both comfortable. Match group sizes and cover the usual planted-tank basics and they share a tank fine.
Which is easier to keep, the Amazon Frogbit or the Riccia Fluitans?
The Amazon Frogbit is the easier of the two, closer to very easy, while the Riccia Fluitans leans beginner-friendly.
Do Amazon Frogbit and Riccia Fluitans need the same water?
Close to it. Aim for 20 to 28 °C and pH 6 to 8 and you're in the shared sweet spot for both. Full ranges are in the table above.
What's the main difference between the Amazon Frogbit and the Riccia Fluitans?
Placement and light. The Amazon Frogbit works as floating, the Riccia Fluitans as foreground or floating, and their light needs differ, which is covered in the table.