Goldfish Care, Tank Setup & Health Guides
Practical, vet-reviewed guides on goldfish care, tank setup, feeding and health – everything you need to raise happy, healthy goldfish.
Latest Articles
Fresh guides, care tips and health advice from the Goldfish Living team.
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Goldfish Dropsy: Pinecone Scales, Causes and Choices
From the side, a goldfish with dropsy just looks fat. From above, there is no mistaking it: the scales lift away from the body and point outward, so the fish looks more like a pinecone than an animal. That view from above is the one that matters, and if you are seeing it, your fish…
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Best Plants for Goldfish Tanks: 8 Hardy Species That Survive
Every goldfish keeper eventually learns the same hard lesson: goldfish regard aquarium plants as a salad bar. You plant a beautiful aquascape on Sunday, and by Wednesday it looks like a lawn mower drove through it. Stems float at the surface, leaves are shredded, and the fish looks extremely pleased with itself. It is tempting…
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Why Do Goldfish Chase Each Other? Spawning, Play & Bullying Explained
Peaceful goldfish are not supposed to look like torpedoes. Yet one ordinary morning the tank turns into a racetrack: one fish glued to the tail of another, lap after lap, corner after corner. Nearly every chase has a legible cause, and the causes ask for opposite responses. A spawning chase needs you to do almost…
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Do Goldfish Need Light at Night? The Short Answer
Ask whether goldfish need light and two camps start shouting past each other. One treats the aquarium light like medical equipment the fish cannot live without, while the other insists goldfish prefer darkness and every lit hour is stress. The truth is calmer than either camp. Goldfish need a day and a night, in that…
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Do Goldfish Need an Air Pump? When Yes, When No
Walk into any pet shop and the wall of bubbling tanks makes an air pump look like the first thing a goldfish needs. Bubble curtains everywhere, packaging promising happier, healthier fish. It is fair to wonder whether skipping one is a mistake. It usually is not. Goldfish do not need an air pump the way…
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Goldfish Gasping at the Surface? Causes and Fixes
A goldfish parked at the surface with its mouth breaking the waterline, opening and closing fast, is doing something keepers call gasping or piping. It is pulling the thin, oxygen-rich layer at the top across its gills because the water below is not giving it enough air. It looks dramatic because it is. Of all…
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Goldfish Not Eating? Causes and What to Do
A goldfish that used to race to the glass at feeding time and now watches the food drift past is telling you something. Appetite loss is one of the most common complaints in goldfish keeping, and one of the least specific. It can mean slightly off water, a chilly room, a stale tub of food,…
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Goldfish Laying on Bottom of Tank: Causes and Fixes
A goldfish parked on the gravel, motionless, is a worrying sight in a fish that used to meet you at the glass. Bottom-sitting has a long list of possible causes, from ordinary sleep to a tank quietly poisoning its occupant. The behaviour alone tells you almost nothing; the posture and the timing tell you nearly…
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Why Is My Goldfish Turning Black? Causes Explained
Black patches spreading across a goldfish can look like the start of something dreadful, especially when they arrive over a few days. Your bright orange fish develops dark smudges on its fins, body or gill covers, and the obvious fear is that it is rotting or dying. Most of the time it is neither. Black…
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New to goldfish? Start here
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