Fluval Plant 3.0 vs AquaSky 2.0: Which Aquarium Light?
Fluval Plant 3.0 vs AquaSky 2.0 LED lights compared on power, spectrum, controls and best use, with who should buy the planted light and who should buy the AquaSky.
The short version
Buy the Fluval Plant 3.0 for a planted tank: it has higher wattage and a spectrum with six band waves aimed at plant growth. Buy the Fluval AquaSky 2.0 for a fish-focused tank where color and effects matter: it is RGB plus white, app-controlled, IP67 waterproof and lower in power. Choose the size to match your tank.
Both are Fluval LEDs with 24-hour light cycles and 120 degree coverage, but they are built for different tanks. The Plant 3.0 is the planted-tank light. The AquaSky 2.0 is the color and effects light. The cards below show the sizes for a 36 to 48 inch tank. Use our planted vs basic LED guide for how much light plants need.
Fluval AquaSky 2.0 LED (27W, 36 to 48 inch)
Under $200
Check price on AmazonAt a glance
| Fluval Plant 3.0 LED (46W, 36 to 46 inch) | Fluval AquaSky 2.0 LED (27W, 36 to 48 inch) | |
|---|---|---|
| Power | 46 watts | 27 watts |
| Spectrum | Six band waves for full spectrum results | RGB plus 6500K white LEDs |
| Control | Programmable 24-hour cycle with habitat presets such as Lake Malawi, Tropical and Planted | FluvalSmart app Bluetooth control, 24-hour cycle, weather effects |
| Coverage | 120 degree dispersion | 120 degree beam angle |
| Waterproofing | Not listed | IP67, safe for direct mounting over water |
| Best for | Planted tanks | Fish tanks and color effects |
| Mounting | Extendable brackets | Not stated in the listing |
| Budget tier | Under $300 | Under $200 |
Specs from each manufacturer's published listing. Confirm the current listing before you buy.
Choose the Fluval Plant 3.0 LED (46W, 36 to 46 inch) if…
You have live plants and want the higher wattage and a plant-oriented spectrum. The Plant 3.0 lists habitat presets that include a Planted setting.
Check Fluval Plant 3.0 LED (46W, 36 to 46 inch) on Amazon
Choose the Fluval AquaSky 2.0 LED (27W, 36 to 48 inch) if…
You keep fish and want color, weather effects and app control at a lower price tier. The AquaSky lists RGB plus white LEDs and an IP67 rating.
Check Fluval AquaSky 2.0 LED (27W, 36 to 48 inch) on Amazon
Who should skip both
If you grow demanding plants, a stronger planted light is better (see Chihiros WRGB II Slim vs PRO). For a basic fish tank, a plain LED is enough.
Related
- Fluval Plant 3.0 review
- Best LED aquarium lights
- Chihiros WRGB II Slim vs PRO
- Planted vs basic LED light
Comparison based on published manufacturer specifications and the general consensus of owner reports. We have not tested these products side by side. Confirm current specifications and prices before buying. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently Asked Questions
Is the Fluval Plant 3.0 better than the AquaSky 2.0?
For plants, yes: it has higher wattage and a plant-focused spectrum. For color effects and app control on a fish tank, the AquaSky 2.0 is the better fit.
Can I grow plants under the AquaSky?
It can support low-light plants, but it is not designed as a planted light. The Plant 3.0 is.
Are they waterproof?
The AquaSky 2.0 lists IP67 for direct mounting over water. The Plant 3.0 listing does not state a rating.
How do I choose the size?
Match the model to your tank length. The Plant 3.0 shown fits 36 to 46 inch tanks, and the AquaSky shown fits 36 to 48 inch tanks.
Planning or running a tank?
Use our free calculators and guides to get every number right.
Aquarium Planner: $39