Aquarium Light VS Grow Light: Which One Should You Get?

If you’re thinking about whether or not to buy an aquarium light, it’s essential to understand the difference between the two types of lights.

Aquarium lights simulate natural sunlight and provide a healthy environment for your fish.

However, grow lights are more powerful than aquarium lights for plant growth.

A nice aquarium light is a wise purchase if you’re just getting started with fish keeping.

They can be used throughout the year to maintain a healthy environment for your fish.

Aquarium lights can also help new fish keepers with their lighting.

The light simulates sunlight, which allows your fish to adjust to the aquarium more quickly.

What is an aquarium light?

An aquarium light is a device used in tanks to provide illumination. These lights are available in fluorescent, halogen, and LED variations. Many people choose to add an aquarium light to their tank as it can help provide a more immersive experience for fish.

What is a grow light?

A grow light is a supplemental light used in indoor gardening and horticulture.

It emits light near the visible spectrum and is used to promote plant growth. Grow lights come in various shapes, sizes, and wattages and can be attached to the ceiling or mounted on the wall.

How do aquarium lights and grow lights compare?

The benefits of using aquarium lights and grow lights are both significant. Aquarium lights provide a bright and cheery environment for fish, while grow lights help plants grow taller and denser.

However, there are some critical differences between the two types of lighting that should be considered before making a purchase.

For example, while both aquarium lights and grow lights emit heat, grow lights tend to produce temperatures higher than aquarium light fixtures.

Additionally, the wavelengths of light emitted by each type of lighting vary slightly, affecting the growth rate of certain plants in different ways.

Overall, though, learning about these differences is essential before making a purchase decision for either type of lighting.

Similarities Between Aquarium light and grow light

Types of Grow Lights

The three main types of lighting for growing plants are fluorescent, incandescent, and HID.

All three have their benefits and disadvantages.

The main difference between HID and fluorescent lighting is that HID uses a mercury vapor lightbulb while fluorescent uses light bulbs with a blue or yellow phosphor coating.

Incandescent lights are the cheapest to purchase, but they also have the shortest life span and produce the most heat.

Types of Aquarium Lights

Aquarium lights come in two varieties: high-intensity discharge (HID) and low-intensity discharge (LED).

Both produce intense light, but there are some critical differences.

HID produces more heat than LED, which is good for growing plants in a hot room but not great if you want to keep your fish healthy.

Aquarium Light VS Grow Light: Which One Generates More Heat?

While both types of lights produce heat, it is vital to consider the potential consequences before deciding on which kind of light to use in your tank.

Aquarium lights generate significantly more heat than grow lights, which can be a problem if you have a high-heat fish like cenobite.

If you’re using an aquarium light for general illumination and your fish get too hot from it, they may swim away or even die.

Aquarium Light VS Grow Light: Which One is Cost-Effective?

One crucial factor is the cost when deciding whether to purchase an aquarium light or grow light. Cost-effectiveness can be determined by comparing the price of each product individually and then taking into account their respective benefits.

Aquarium lights typically use lower power bulbs and are less expensive than grow lights.

They also emit a softer light that is better for fisheyes and other delicate creatures, while grow lights tend to produce brighter light for plants.

In general, aquariums with fewer fish will benefit more from an aquarium light, while larger tanks will benefit more from a grow light.

Aquarium Light VS Grow Light: Which Color is Best?

Aquariums come in all shapes and sizes, but the one thing they have in common is a need for light to keep fish healthy.

When choosing an aquarium light, it’s essential to consider the type of light your fish prefer.

UV or white light will kill plants, so if you want to use artificial plants, then choose a UV light.

On the other hand, grow lights emit red and blue light, which is better for plants.

You can choose between a tube of fluorescent or LED lights, but both can be expensive. So instead, using two white CFLs with a timer will work fine if you’re on a budget.


When it comes down to growing plants in your aquarium, aquarium light is not as adequate as you would hope.

In conclusion, aquarium light and grow light come with two different purposes. So, when choosing a light for your aquarium, it is essential to consider the purpose of the light and what you hope to achieve with it.