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.
-
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…
-
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…
-
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…
-
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…
-
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,…
-
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…
-
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…
-
Goldfish Fin Rot Treatment: Causes and Healing
Fins are supposed to be flowing and whole, so ragged, shrinking edges stand out the moment you look at the tank. Fin rot is one of the most common bacterial problems in goldfish, and it almost always tells the same story: the water slipped, the fish got stressed, and bacteria that were already there moved…
-
Goldfish Ich Treatment: White Spot Disease Guide
Few things ruin an evening of watching the tank faster than tiny white dots scattered across a goldfish, like grains of salt stuck to the fins. Once you see them, you cannot unsee them. That is ich, short for Ichthyophthirius multifiliis, the most common parasitic disease in home aquariums. The good news is real: ich…
Explore by Topic
Find exactly what you need – browse our most popular goldfish topics.
Health & Diseases
Spot symptoms early and treat common goldfish illnesses with confidence.
Feeding & Nutrition
What to feed, how much and how often – balanced diets explained.
New to goldfish? Start here
Follow these three beginner-friendly steps and your goldfish will thrive.