Pond lights are the secret ingredient that can change any regular pond into an amazing one. Don’t believe me? Just install one and see it during the night. It’s unbelievable.

It’s good to light up your pond from time to time, however, you also should consider the safety of your fish along with the delight and beauty pond lights bring to you. Using lights non-stop will disrupt the natural cycle of fish and can cause changes in the behavior of fish. It also can facilitate algal growth.

Here I am going to help you familiarize, with the risks of underwater pond lights and what precautions you can take to keep the fish comfortable.

How can pond lights bother fish?

Imagine you’re sitting in your backyard after a long day, enjoying the golden hour whilst a slow breeze brushes past your shoulders. The sun has finally set and the sky is dark. Your backyard starts to glow softly as the look of your pond changes by underwater lights, your favorite fish dancing around, you thought life’s good.

While underwater pond lights can look great on the eyes, excessive use of them can bother the fish. It is always your duty to keep the fish in your pond safe and comfortable. So, we are here to tell you how pond lights bother fish so that you can take the necessary steps to avoid these mistakes.

Do Pond Lights Bother Fish

1. Increases the temperature of the pond

The temperature of your pond plays a very important role for fish to thrive. Using lights that will heat up the pond will surely make the fish uncomfortable and we certainly don’t want that.

2. Attracts predators

Due to extra lights, the pond will be the primary focus for predators to attack which, in turn, will endanger the lives of fish.

3. Affects fish behavior

Using underwater pond lights sometimes hinders the growth of fish as well as affects psychological behavior. Because of the continuous use of lights, it is difficult for the fish to understand the difference between day and night.

4. Disrupts the natural cycle of fish


Fish, just like us, have a natural cycle of waking up and going to sleep. Turning on the lights during nighttime will certainly interfere with their sleep thus, it is always better to maintain a regular cycle.

5. Boost algae growth

Light is a major element for plants and fish to survive. Nonetheless, excessive lights will warm the pond and increase algae growth rapidly.

Necessary tips to prevent lights from bothering fish

Underwater pond lights can create a great ambiance for your landscape. There are, however, few limitations involved in using lights as mentioned above. Now that you’re familiar with how pond lights can bother fish, we are here to help you solve the problem.

  • Avoid using lights that usually radiate heat. For instance, halogen lights usually make the surroundings warm so try not to use them. As a better alternative, LED lights can be used. They’re bright, economical, and most importantly don’t radiate heat.
  • Check the brightness when you turn on the lights and make sure it is not too bright. Excessive lights can hurt fish eyes and make them anxious and tense so be careful of it.
  • While decorating your pond with underwater lights, ensure there’s a dark place in your pond for the fish to hide. You can use dimmed lights in some places and keep other places completely dark. In this way, the fish will have a safe place to go to if the lights are too bright.
  • You can always turn off the lights from time to time. Light is good but sometimes darkness is necessary. Be mindful of the number of lights you’re using and give your fish the privacy they need.

Options for safe pond lights

After familiarizing yourself with all the necessary details, now it’s up to you to decide whether you need the lights or not. With all the risks and precautions mentioned above, choosing the perfect sets of pond light will not be easy. Thus, we are here to help you solve your dilemma.

With so many choices to go for, it might be a little difficult for you to pick the light that is going to be best for you. Not to worry, we are here to guide you.

There are two types of safe light options you can go for, one is submersible lights and the other is solar lights. The submersible light will go at the bottom of your pond and light the pond from within. The lights cause reflections by hitting the water directly.

The solar pond lights use the sun as the power source and need no electricity. When the sun is down, the lights are automatically turned on and require very little preservation. As a result, it is one of the best options for pond owners to go for.

Here are a few of the options to look for. Hope you have fun!

1. Jebao Submersible LED Pond Lights with Photocell Sensor

Jebao Submersible LED Pond Light with Photocell Sensor

This LED light comes in a variety of colors at a very affordable cost. With the photocell sensor installed it will automatically turn on the lights after sundown.

2. Jebao Submersible Pond Lights with Colored Lenses

Jebao pl1led6 JPL1-LED6 Submersible Pond LED Light with Colored Lenses

These LED lights also have many different color options at a low price. It can be used in a pond and also to enhance the look of your garden.

 3. Aquascape Submersible LED Spotlight for Pond

Aquascape 84034 6-Watt Waterproof Submersible LED Spotlight for Pond

These sets of light are durable and are the best for all conditions due to the protective layer. The lights easily stay on the bottom of the pond because of the adjustable stand. In addition to this, this light has the most natural shade of white pond lights.

4. Solar Pond Light IP68 Waterproof With 3 Submersible LEDs

Solar Powered Spotlights Upgraded Amphibious Lighting

It is one of the perfect lights for people who like to enjoy the pond during the night. When fully charged it works for a long period of time, up to 20 hours. It also has color-changing features which include two light modes.

These are just a select few that popped into my mind. If you wanna look more closely, I implore you to check out my article on the best pond lights. It’s got an amazing collection of colorful lights to illuminate your pond.

Last Words

The fish in your pond are exposed to sunlight during the day. Therefore, it is always better to keep the minimum of lights during the nighttime.

While there are so many factors to consider, adding pond lights will not only be gorgeous but also a great decorative piece for your pond. These underwater pond lights are safe for your fish so no harm is done to your fish.

Now that you’re aware of all the necessities, how about you start decorating your pond while also taking the safety of your fish into account.

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