How to Build an Aquarium Breeder Box for Fish

Build an Aquarium Breeder Box for Fish
Build an Aquarium Breeder Box for Fish (Image:

A breeder box is a helpful tool for any fish breeder. It allows the males and females to spawn, and then be easily separated, making the breeding process much simpler. A pre-made breeder box can be costly to purchase, but making your own can be easily accomplished with just a few materials.

Things You'll Need

  • 6-inch by 6-inch clear acrylic squares
  • Aquarium safe epoxy
  • Small metal arms with suction cups
  • Mesh netting
  • Power drill
  • Pliers
  • Small drill bit
  • Permanent marker

Mark various spots on all four sheets of your clear acrylic. These spots will be vent holes that will allow water and air to flow freely through the box.

Drill these holes out with your small drill bit. Be sure the bit is approved for plastics so that you do not break your sheets.

Prepare your epoxy according to the directions. Most epoxy needs to be mixed prior to application, so read the directions carefully.

Place one section of your acrylic on a flat surface and apply a bead of epoxy along one edge. Press the free end of a second piece of acrylic over the epoxy and hold until it sets up firmly.

Repeat with the remaining three sections until you have a cube shape with a bottom. You want to leave the top open to ensure ease of feeding and transferring fish.

Bend the free ends of your metal arms over so that they form a small "L." Attach these arms with a bead of epoxy to one side of your box. These arms will be used to hold your breeder box securely to your large aquarium.

Slip the mesh netting over the breeder box before placing it inside your fish tank. The mesh will keep small fry from escaping out of the holes but will still allow flow of fresh water through the box.

Place the breeder box down inside your aquarium and secure it to the side with the suction cups. Allow the breeder box a day or two to acclimate to your aquarium before using it for optimal results.

Tips & Warnings

  • Use only fish-safe epoxy. Any other type of adhesive can result in illness or death.
  • Do not use your breeder box until everything is fully dry. Wetting your box before it has set can cause it to come apart.

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