Best Light Up Fish Tank Decorations

In addition to classic fixed decoration, moving bubbling objects can bring even more life to an aquarium. If this is not enough and you want a bigger eye-catcher, you can use light decorations. However, care should be taken not to disturb the quality of life of the fish.

Fish have a day-night rhythm just like humans. For the animals to keep this rhythm, it must be dark in the aquarium at night. Fish do not have eyelids that they can close like humans. For this reason, the lighting in the aquarium should be switched off at night and slowly switched on again in the morning.

To bring lighting into the aquarium, there are special lights, which must be placed in other decorations, but also complete objects, which light up by themselves. To increase comfort is recommended to use variants with an aquarium light timer. Also, a remote control can facilitate the operation.

The Best Light Up Fish Tank Decorations

1st Aquarium Bubble LED Lights – Remote Controlled Air Stone Disk


  • Dimensions: 6.3 x 4.8 x 2.8 inches
  • Weight: 15.2 ounces
  • Color: Black
  • Wire Length: 5.9ft
  • Air Tube Size Diameter: 0.2 inches
  • Lighting Modes: Flash, Strobe, Fade, Smooth
  • Colors: 16
  • Light Source Type: LED

The first product is an extension of existing decorations. It is a base that can be used in combination with other decorations to enhance them. The device has 11 LEDs, which can be controlled via a supplied remote control. Through this, 16 different colors can be created in the RGB color space. Also, the brightness can be adjusted via the remote control, and various effects such as flash, strobe, fade, smooth can be applied.

Another additional effect can be achieved by connecting an air pump. The device has an adapter with a size of 0.2 inches to which a pump can be connected. This should have at least 2.5 W. This causes bubbles to rise from the device, which can be provided with different colors. Due to the weight of 15.2 ounces, you can easily place it on the floor and do not need to attach it further.

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2nd Decorative Seaweed Artificial Silicone Ornament for Fish Tank


  • Dimensions: 9.84 inches
  • Weight: 1.32 ounces
  • Material: Silicone
  • Color: Pink

The following decoration is plastic seagrass, which glows in the light in great colors. It is so thin that it floats around in the water like real grass. However, an extra light source is needed to create the effect. The manufacturer recommends actinic lighting and blue or purple light.

As an important note, the seller states that the product should be washed in water for at least 2 days before adding it to the aquarium. Nevertheless, the material should not be harmful to the animals.

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3rd Multi-Colored LED Aquarium Bubbling Stone Disk


  • Dimensions: 6.4 x 3.1 x 2.1 inches
  • Weight: 6.38 ounces
  • Color: Black
  • Air Tube Size Diameter: 0.17 inches
  • Light Source Type: LED

This device is a bubbler, which can produce different colors. However, to make bubbles rise, an extra air pump is needed. This can be connected to the device via a hose. However, the colors are not selectable and change permanently. This means that it is not possible to create a predictable image.

The device can then be placed under another object or between plants. The bubbles then simultaneously bring oxygen into the pool, which is also a positive effect. The product is available in different sizes and also color variations.

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4th Silicone Coral Plant Decorations Glowing Artificial Ornament for Fish Tank


  • Dimensions: 2.36 x 4 inches
  • Weight: 1.76 ounces
  • Material: Silicone
  • Color: Orange

The following decoration is a coral, which glows under blue light in the aquarium. This is available in different color variations. Due to the thin design, the model behaves like a real coral and moves in the water.

The model is also made of silicone and should not be harmful to fish. Nevertheless, the manufacturer recommends to wash it thoroughly before putting it into the tank and let it stand in separate water for 2 days.

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5th Glow in The Dark Pebbles for Aquarium, 100 Fish Tank Rocks


  • Package Dimensions: 8.11 x 6.22 x 2.83 inches
  • Weight: 7.69 ounces
  • Material: Plastic Resin

A very simple but still vivid decoration option in an aquarium are self-luminous stones. These pebbles can absorb daylight and then glow in the dark for 2 to 3 hours. There are 100 stones in a pack, all of which are at least 0.5 inches in size.

There are several colors of stones available. For example, there is a green pack, a blue pack and a mixed pack. To that is to differentiate whether the stones are gray in daylight or also colored in the bright color. The advantage of this decoration is that no electricity is needed.

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