Neo Helios Flat Nano S3 Pro+ 13W Full Spectrum 10000K LED Light for Planted Aquarium

The Neo Helios Flat Nano S3 Pro+ is a 13W full-spectrum 10000K LED light built for planted nano and small aquariums, delivering bright, plant-growing light in an ultra-slim flat profile. Its high-penetration full-spectrum output brings out vivid greens and reds in plants and makes fish colours pop, while the low-profile aluminium body sits neatly across the rim on adjustable brackets. For aquascapers who want strong, even light without a bulky fixture, this is an excellent choice.

Why choose the Neo Helios S3 Pro+?

• Full-spectrum 10000K light that supports healthy photosynthesis and renders plant and fish colour naturally.
• 13W high-penetration output that pushes usable light down into the tank, suitable for low- to medium-light planted setups.
• Ultra-slim flat design that looks tidy on rimless and framed nano tanks.
• Adjustable mounting brackets to fit a range of small tank widths.
• Energy-efficient, long-life LEDs that run cool and last for years.

Specifications

Which tanks is it best for?

The S3 Pro+ suits planted nano and small aquariums where you want strong, even light in a slim fixture. It is ideal for low- to medium-light plants such as Anubias, Cryptocoryne, Java fern and easy stem plants. For demanding carpets and red plants you will also want CO2 and regular dosing — see our planted aquarium lighting guide.

How to use it

Mount the light across the tank on its brackets and run it for 7–8 hours a day for a planted tank, ideally on a timer for consistency. Always give the tank a dark night period and keep it out of direct sunlight to avoid algae. Start at the lower end and increase only if plants need it. For the full schedule see how many hours should aquarium lights be on and should you turn aquarium lights off at night.

Frequently asked questions

Is the Neo Helios S3 Pro+ good for planted tanks?

Yes. Its full-spectrum 10000K output is designed for plant growth and works well for low- to medium-light planted nano and small tanks.

How many hours should I run it?

7–8 hours a day on a timer for a planted tank. Start lower and increase only if plants need it, to avoid algae.

What size tank does it suit?

Nano and small planted aquariums. Match the light length to your tank and use the adjustable brackets to fit the width.

Does it need CO2?

Not for easy low-light plants. Add CO2 and dosing only if you keep demanding plants or want fast, lush growth.

Will it cause algae?

Only if run too long or in direct sun. Cap the photoperiod at 7–8 hours and keep the tank out of sunlight.

New to planted lighting? Read the complete aquarium light guide and the planted lighting guide, and pair good light with the right fertiliser dosing for healthy growth.