Bubble Eye Goldfish Care: Complete Guide for Beginners
Learn how to properly care for Bubble Eye Goldfish! Despite their delicate nature, with the right knowledge, they make splendid pets for beginners. We’ll dive into their needs, from water conditions to breeding, to ensure your Bubble Eye thrives.

Bubble Eye Goldfish Species Profile and Identification
The Bubble Eye Goldfish is a small and distinctive fancy goldfish known for its unique appearance. Its main characteristic is the two large fluid-filled sacs that develop beneath its eyes.
- Appearance: The Bubble Eye Goldfish has metallic scales, a dorsal-less body type, and double tail fins. They possess eyes that point upwards, accompanied by two pronounced fluid-filled sacs. The sacs under their eyes wiggle as they swim, lending them an unusual but charming look.
- Size: A mature Bubble Eye typically grows up to 3 to 4 inches (7.5 to 10 cm) in length. However, under optimum conditions, they can reach up to 6 inches (15 cm).
- Color: They come in a variety of colors such as red, orange, white, calico, and the less common, black. The consistency in bubble color and size is the mark of a well-bred specimen.
- Distinctive traits: The highlight of this breed lies in its “bubbles.” These eye sacs develop about three months after the fish hatches. They are quite delicate and are prone to popping, resulting in infection risks.
- Lifespan: With proper care, Bubble Eye Goldfish can live up to 15 years, although the average lifespan ranges between 6 to 10 years.
This breed has variations including a long or more rounded body type and matte, metallic, or nacreous scales presentation. A recent adaptation even sports four eye sacs rather than the usual two.
They are peaceful, socially reluctant, and have limited visual ability due to the location and size of their bubbles. As a result, they are not strong swimmers and have a distinctive low-bobbing movement.
Bubble Eye Goldfish Supplies
When setting up an aquarium for your Bubble Eye Goldfish, there are basic supplies you need to consider:
- Aquarium: At least 20 gallons or 75 liters sized tank will give room for your goldfish to swim comfortably.
- Aquarium Stand: Ensure to have a sturdy stand that can hold the weight of a full aquarium.
- Filter: Choose a gentle water filter as Bubble Eye Goldfish have fragile skin sacs. Make sure the water inflow is not too strong.
- Heater: As they can handle a temperature between 55 to 80F (10 to 27 C), a good aquarium heater is needed.
- Aquarium Lighting: A basic LED light will suffice. Adding a timer will be useful to create a regular lighting schedule.
- Substrate: Soft substrate is best to prevent injuries to your goldfish.
- Tank Decorations: Sharp objects can cause harm to the skin sacs of Bubble Eye Goldfish. Therefore, smooth and rounded decorations should be chosen.
- Test Kit: To maintain the water quality, purchase a test kit to check pH, hardness, ammonia, nitrate and nitrite levels.
- Goldfish Food: They are omnivores. You can give diverse food like flakes, pellets, green vegetables, and occasional protein treats like shrimps or daphnia.
Let’s discuss setting up your tank for the goldfish.
Bubble Eye Goldfish Tank Setup
When setting up a tank for your Bubble Eye Goldfish, remember it’s not just a place for them to live, but a home they thrive in. First off, a size of 20 gallons (75 liters) minimum is recommendable. Why so large? They grow up to 6 inches (15.2 centimeters) and they need proper swimming space.
No sharp objects or decorations should be present in the tank. The bubble eyes of the goldfish are delicate, a collision could damage them and even cause infections. Equip your tank with smoothly surfaced ornaments instead.
- Substrate selection involves two types: sand or small-sized, smooth gravel. The latter facilitates feeding and prevents the goldfish from occasionally swallowing a pebble.
- Plants are a great addition, but opt for robust ones. Fine leafed or delicate plants may be disturbed by the fish. Java ferns and anubias can b