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98 results for “goldfish health”
Why Is Your Goldfish Sitting at the Bottom and Not Moving?
Many things cause a goldfish to sink and stay still — wrong medication, poor water, new-environment stress, wrong temperature — but it may also just be hiding or sleeping. This article details the reasons.
Why Is Your Goldfish Not Swimming Much?
A goldfish that won't swim may be overfed, or suffer from wrong temperature, poor water, or low oxygen. Keep water quality good and temperature steady to protect its health. This article covers the reasons for inactivity.
How to Keep Goldfish: Methods and Precautions
More people keep pet fish, and goldfish are a favorite — but beginners lacking experience often fail to keep them alive. Here are methods and tips to raise goldfish and improve survival, for new keepers.
Best Goldfish Breeds for Beginners
Good beginner goldfish include comet, ryukin, black moor (dragon-eye), Thai lionhead, Chinese lionhead, and tigerhead — all vigorous and easy to keep, ideal for practice. Keeping them alive is easy; keeping them well takes effort: regular water changes, prompt cleanup of waste and leftover food, good water quality, and feeding to 70–80% full to avoid digestive upset.
How long do home goldfish live?
Home goldfish generally live 3 to 5 years, longer with good care. Keep water depth 20 to 25 cm, temperature 20 to 28C, and pH 7.5 to 8.8.
What Fish Can Live with Goldfish?
Goldfish are peaceful, social fish that tolerate 0–39°C but dislike sudden temperature shifts and prefer 20–28°C. Good tank mates are similar-sized, gentle, and share their water needs — such as guppy, angelfish, platy, tetra, and blood parrot, plus compatible goldfish varieties like Black Moor, Red Cap, Lionhead, and Ranchu.
At what size can goldfish breed?
Goldfish breed at about 1 year; fast ones at 7-8 months. They breed in spring-summer, best April-June, spawning every 1-2 weeks with over 5,000 eggs if healthy; fry hatch in 3-7 days. Water temperature strongly affects breeding; keep 18-25 C.
How often should grass goldfish be fed?
Feed grass goldfish 1 to 2 times a day with shrimp, worms, daphnia, or pellets plus chopped veggies like spinach and carrot. Do not overfeed, as leftover food fouls the water and harms the fish.
How often should you change goldfish water in summer?
In hot summer change water every 3-4 days, adjusted to local temperature, since bacteria grow fast. But avoid too-frequent changes, as big environment shifts also harm goldfish.
What water temperature suits a Thai lion goldfish?
Thai lion goldfish do best at 20-28°C, ideally 24°C; above 30°C they stress, stop eating and may get oxygen-starved. Keep temperature stable, within 2°C when changing water.