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46 results for “goldfish diet”
Why Do Goldfish Lose Buoyancy (Swim Bladder)?
Lost buoyancy (swim bladder disorder) is a common goldfish disease many owners meet. Signs include the fish lying on its side or upside down, floating at the surface or sinking to the bottom. This article focuses on the common causes of swim bladder loss in goldfish.
Why Is My Goldfish’s Belly Swollen?
A swollen goldfish belly is usually from overfeeding and poor digestion, spawning, or gut problems. Stop feeding and raise the temperature for digestion; keep water at 20–25°C during spawning; for gut infection use the 'salt + heat + water change' method and furan powder.
Can Goldfish and Guppies Live Together?
Goldfish and guppies aren't a good mix. Goldfish are long-domesticated with weak immunity, so even alone they fall ill easily; with guppies, bacterial cross-infection can kill the goldfish. They also differ in temperature, water needs, and size — a large goldfish can accidentally harm a tiny guppy. Keep goldfish in a low-density single tank; guppies pair better with small tetras, platies, mollies, or moonfish.
Why Is My Goldfish Lying on the Bottom of the Tank in Winter?
A goldfish resting on the tank bottom in winter is usually caused by low water temperature, poor water quality, or illness. Cold water slows the fish's metabolism so it conserves energy at the bottom—raise the temperature to 18–25°C with a heater. Dirty water should be refreshed and kept at pH 6.5–7.5, while disease (enteritis, temperature shock, bacterial infection) needs prompt isolation and a 1% salt bath. Regular water changes and added aeration further prevent the problem.
Key Points for Keeping Goldfish Healthy
To keep goldfish healthy, follow core rules on tank choice, water quality, diet, and health observation. Pick a tank sized to the fish's number and size for enough swimming room, place it stably and quietly away from direct sun, keep the water clean with regular changes and a filter, and feed a balanced diet without overfeeding. Watch your fish's behavior and appearance to catch problems early.
Why Isn’t My Goldfish Growing?
A goldfish that stays small is usually a sign of husbandry problems rather than bad genes. The environment is the single biggest factor—a tank that is too small or water that is dirty, the wrong temperature, or low in oxygen slows metabolism and stalls growth. Diet matters just as much: too many carbohydrates and too little protein or vitamins restricts development. Feeding style, water testing, and waste removal also play a role. To help a goldfish reach its full size, give it a spacious, stable tank with filtration, keep water clean and well-oxygenated, and feed a high-quality food in small, frequent meals matched to its life stage.
How to Choose and Care for Goldfish
Keeping goldfish starts with choosing healthy fish, especially for beginners who may otherwise face sudden illness. Avoid fish that float head-down, list to the side, or show wounds, lost scales, white fuzz, white spots, bloodshot fins, cloudy eyes or faded color. Feed a varied diet of live foods or quality pellets, use fixed times and spots, keep one year-old fish to about 10 litres of water, and maintain clean, stable-temperature water to prevent disease.
Ingot Red Goldfish
The Ingot Red Goldfish is a goldfish variety whose head red patch has a rear edge curving inward like an ancient ingot, a very unique form beloved by goldfish fans. Like goldfish it is gentle and can be kept with other gentle fish.
Azuma Goldfish
The Azuma goldfish is a goldfish variety. Unusually, it does not show its pretty pattern at first; the color appears slowly months after hatching. Its habits are the same as other goldfish.
Goose-Head Ryukin Goldfish
The Goose-Head Ryukin Goldfish is a goldfish variety with its own distinctive look, sharing goldfish habits. A strong swimmer not picky about water, it is easy to keep. It breeds in spring (April-May) and reaches 10-15 cm.