Preserving an Aquarium Fish in a Jar: A Step-by-Step Guide

Deciding to preserve a beloved aquarium fish might be a heartbreaking yet thoughtful tribute. In this detailed guide, we explain the process of embedding a deceased fish in a jar, ensuring it remains an untainted reminder of your beloved pet's time with you. This method provides a practical and aesthetically pleasing solution, especially for small fish like Bettas.

Materials Needed

To prepare for this preservation process, ensure you have the following items:

A neutral or white yarn or polyester fiber A needle suitable for threading Either formalin or alcohol (70% isopropyl alcohol works well) A glass jar with a twist-off lid A heavy item, like a stone, that can secure the fish in the jar

The Preservation Process

Preserving a deceased fish in a jar is a delicate process that requires careful handling. Follow these steps to ensure your fish remains lifelike and undistorted in its final resting place.

Step 1: Prepare the Fish

Begin by taking the fish out of the solution it was originally kept in, if applicable. Use moistened hands or a damp cloth to gently pick it up, ensuring no additional water gets into the jar.

Thread a needle with a neutral or white piece of yarn or polyester fiber. Make a good-sized knot at the end of the thread to prevent it from unraveling.

Thread the needle vertically through the fish's dorsal fin, aiming for the central part of the body. The knot should be positioned near the dorsal fin, which helps in achieving a horizontal floating position.

Ensure the fish is balanced so that it floats horizontally in the jar. If necessary, adjust the needle to achieve this balance. This is crucial for achieving a natural floating posture.

Step 2: Secure the Fish in the Jar

Once the fish is properly balanced, thread the needle through a heavy object, such as a stone. The stone should be of appropriate size to fit inside the twist-off jar.

Attach the thread to the stone so that the fish hangs in the middle of the jar when inserted.

Step 3: Fill the Jar and Seal It

Fill the jar with either formalin or alcohol from a drugstore or pharmacy. Ensure the solution covers the fish completely.

Screw the lid on tightly to prevent leaks or evaporation.

Place the jar in a cool location away from direct sunlight to preserve the fish over time.

Post-Preservation Considerations

While preserving a fish can be a beautiful tribute, it's important to be aware of the changes that may occur over time. Discoloration and altered posture are common after the preservation process. However, these changes can be mitigated by proper handling and storage.

Conclusion

Preserving a deceased fish in a jar is a thoughtful and practical approach to honoring your pet. With the right materials and steps, you can ensure that your fish remains a cherished memory for years to come. Whether for small Bettas or other aquarium fish, this method provides a meaningful way to preserve memories.