DIY Aquarium Divider: A Budget-Friendly Guide

Are you facing aggressive fish behavior in your community tank? A stressed-out fish can quickly become a major problem. Expensive store-bought dividers may seem like the only solution, but what if there was a cheaper, simpler alternative? This DIY aquarium divider guide will show you how to create a custom, budget-friendly solution using readily available materials. We'll take you step-by-step through the process, from measuring and cutting to assembly and installation. This project is perfect for aquarists looking for a practical and cost-effective way to separate their fish while maintaining a healthy tank environment. Get ready to save money and keep your finned friends happy!This guide demonstrates how to build a reliable divider for your aquarium using PVC piping, egg crate, and zip ties. We’ll cover essential measurements to ensure a perfect fit in your tank and provide tips for creating a sturdy frame. Learn how to add a convenient small door for controlled interaction between your fish, adding flexibility to the design. The entire project is surprisingly inexpensive, proving that effective aquarium solutions don't have to break the bank. Prepare to tackle this easy-to-follow guide and create a custom divider tailored to your tank’s specific needs.

Read more: Fish Tank Dividers: A Comprehensive Review of Types and Uses

The Problem: Aggressive Male Geo

My male Geo was aggressively harassing the female, causing her significant stress. This necessitated immediate separation to ensure her well-being. A temporary solution was needed, prompting the creation of a DIY aquarium divider.

Female Geo in a temporary tank
Female Geo in a temporary tank

I moved the stressed female Geo to a smaller tank in my kitchen. This temporary setup, however, had less-than-ideal lighting conditions due to kitchen glare.

Temporary tank in the kitchen with glare
Temporary tank in the kitchen with glare

The need for a quick, cost-effective solution led to the exploration of building a custom divider for my main 75-gallon tank.

Materials and Costs: Keeping it Affordable

The materials were surprisingly inexpensive, taking advantage of readily available items. I used zip ties (free from work), three-way half-inch PVC connections (approximately $2.40 total), and a sheet of egg crate (around $12).

Zip ties
Zip ties

Approximately 10 feet of half-inch PVC piping cost around a dollar, showcasing the project's budget-friendly nature. This cost-effectiveness is a major advantage of this DIY approach.

PVC connections
PVC connections

The total cost was minimal, making this a great option for aquarists on a budget. The project proves that high-quality solutions aren't always expensive.

Egg crate
Egg crate

Construction and Measurement: Trial and Error

Measuring accurately was crucial for the divider's fit. I measured the tank's interior dimensions, compensating for the PVC's thickness. Several attempts were made to achieve the correct sizing.

Measuring the tank
Measuring the tank

The three-way PVC connections were strategically used to create a sturdy frame and prevent tilting. Braces across the top and bottom provide stability.

Cutting the PVC
Cutting the PVC

The process involved cutting the PVC to size, assembling the frame, and then attaching the egg crate using zip ties. This required patience and attention to detail.

Completed PVC frame
Completed PVC frame

Egg Crate and Zip Ties: Securing the Divider

The egg crate provided a porous barrier, allowing water flow while preventing fish from passing. However, its large holes make it unsuitable for smaller fish species.

Attaching the egg crate with zip ties
Attaching the egg crate with zip ties

Zip ties were used to securely attach the egg crate to the PVC frame. Careful tension was necessary to avoid breakage of the relatively fragile egg crate.

Finished divider with egg crate
Finished divider with egg crate

The process involved cutting and attaching the egg crate, ensuring a snug but not overly tight fit. Trimming excess materials created a clean, finished product.

Adding a Door: Functionality and Refinement

A small door was added to the divider to provide access and allow temporary interaction between the fish. This added functionality enhances the divider's versatility.

Divider with added door
Divider with added door

This small door was created by cutting a hole and attaching a slightly larger piece of egg crate. Simple zip ties secured the makeshift door.

The door allows for controlled interaction when needed, ensuring the female Geo can have access to additional space and potential interaction while maintaining separation.

Installation and Final Thoughts

Installing the divider in the established tank was challenging due to the substrate. An empty tank would have made this step significantly easier.

Installing the divider in a tank with substrate
Installing the divider in a tank with substrate

The divider provided secure separation, and the addition of the door enhances its overall practicality and flexibility.

The finished product in the tank
The finished product in the tank

Overall, this DIY project provides a cost-effective solution for separating fish within a tank. It’s easy to implement with readily available materials and modifications can be easily applied.