How to make an aquarium divider

Written by sarah davis
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How to make an aquarium divider
Aquarium dividers make one aquarium into double or triple aquariums. (Aquarium image by crossgolfing from Fotolia.com)

If you have two or more fish that do not belong in the same aquarium but need to be housed together for a short period of time, you can make an aquarium divider. Aquarium dividers provide a boundary between fish that do not need to interact. This boundary may be constructed of plastic mesh that enables the water to remain constant throughout the tank. This homemade aquarium divider can be modified to fit aquariums of different sizes and shapes.

Skill level:
Easy

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Things you need

  • Measuring tape
  • Plastic mesh sheet
  • Scissors
  • 2 report binders
  • Aquarium gravel

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Instructions

  1. 1

    Measure the width and height of your aquarium. Cut the width of the plastic mesh a quarter-inch wider than the aquarium. This will ensure a tight fit inside. Cut the height of the plastic mesh to stand a half-inch under the top rim of the aquarium.

  2. 2

    Slide each side of the plastic mesh inside a plastic report binder. The binders should fit tightly on the plastic mesh without sliding off. Use the scissors to cut off the excess binder from the plastic mesh. The binder should only be as tall as the height of the plastic mesh.

  3. 3

    Insert the divider into your aquarium in the location that has been chosen. Move gravel to the base of the divider for extra support. Make sure the top of the divider is high enough above the water line to prevent fish from jumping over the divider into the other side.

Tips and warnings

  • Gravel that is moved to the base of the divider also will prevent fish from slipping through any small holes or passages that may be present after installation.
  • Clean the divider before placing it into the aquarium to prevent any unwanted bacteria from entering the tank.
  • Do not make the divider more than a quarter-inch wider than the width of the tank. This may result in the divider sliding out of place, enabling the fish to interact.

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