Fluval Plant 3.0 LED (15-24 in)
The best planted light here: a full spectrum, app-controlled fixture with strong output that supports demanding plants, from low-light Anubias to carpets. Programmable, waterproof, and the standard the others are measured against.
- +Full spectrum across six wavebands with strong output — bright, even coverage that supports demanding plants
- +Enough output to grow carpet plants with CO2, high light when you want it, and dimmable for algae control when you do not
- +App control (Bluetooth) with a programmable 24-hour cycle and smooth ramp up and down
- +Waterproof housing with extendable brackets and, per Fluval, a 3-year warranty
- −Three to four times the price of a solid budget light
- −The Bluetooth app can be fiddly to pair and program
This is the Fluval Plant 3.0 LED, a full-spectrum planted-aquarium fixture with six wavebands of RGB and white light, Bluetooth app control, a programmable 24-hour cycle with smooth ramping, a waterproof housing and extendable brackets. Fluval states a 3-year warranty. The 15 to 24 inch version draws about 22 watts.
- Planted tanks from low-light to high-tech
- Keepers running CO2 who want enough output for carpeting plants
- Anyone who wants a programmable sunrise and sunset, plus dimming for algae control
- Tanks that need an adjustable spectrum and colour
- Fish-only tanks that do not need planted-grade output, where a budget light is plenty
- Keepers who will not use a Bluetooth app
- Very deep tanks beyond its effective PAR depth
- Tight budgets, since it costs three to four times a solid budget light
We separate what the maker claims from what independent sources confirm, what owners report, and where we are drawing an inference. We do not bench-test products.
- Full spectrum across six wavebands with strong output
- App control with a programmable 24-hour cycle and ramping
- Waterproof housing with extendable brackets
- A 3-year warranty per Fluval
- It is dimmable and programmable through the FluvalSmart app
- Output is enough for carpeting plants when paired with CO2
- The housing is waterproof and the brackets extend to fit a range of widths
- Rated the best planted light in its group, praised for output and control
- The Bluetooth app can be fiddly to pair and program, and it is expensive
- The combination of high output and full programmability is what justifies the price for a planted tank
- For a low-light or fish-only tank it is more light than you need
The upfront cost is high, but the running cost is low at about 22 watts, and there are no bulbs to replace over an LED fixture's long life. The programmability pays back by letting you dim to control algae rather than change equipment, and Fluval states a 3-year warranty.
- Too much light with too little CO2 and nutrients drives algae, which dimming fixes
- Bluetooth pairing and programming frustration
- Mounting on a tank wider or narrower than the bracket range
- Running high output on a low-tech tank without CO2, which favours algae
We do not measure PAR; figures are Fluval's stated specification and paraphrased owner reports. Plant results depend on CO2, nutrients and stocking, which are beyond any light's specification.
No, but its high output is best matched with CO2 and fertiliser for demanding plants. On a low-tech tank, dim it down to avoid algae.
You can run a basic cycle without it, but the schedule, ramping and dimming, which are the main reasons to buy it, are set through the FluvalSmart Bluetooth app.
With CO2 and adequate nutrients, yes. It has the output for carpeting plants at typical tank depths.
For a planted tank you care about, the output and programmability justify it. For a fish-only tank, a budget light is the smarter buy.