Care of a goldfish

To achieve the survival and longevity of our goldfish, it is essential to have some basic care with it, even if it is a very resistant fish that will adapt well to a little variable conditions.

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In this article by YourCatCareguide we will explain to you the care of a goldfish , including information about the aquarium (plants, gravel, …), the food you need and other important details to take into account.

Remember that this popular fish can live for 2 to 4 years, get your fish to reach this life expectancy with our advice.

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The goldfish aquarium

To begin with the care of goldfish or goldfish, a cold water fish , let’s start by talking about the aquarium, a key part to a great standard of living. To do this you must take into account the following:

The size of the aquarium

A single specimen of goldfish must have a minimum of 40 liters of water , which means the following measures: 50 cm wide x 40 cm high x 30 deep. If you have more specimens, you should look for a larger aquarium in light of these measures.

Parameters to respect

Next, we will walk you through these details, important for your goldfish to feel in a suitable environment:

  • PH: Between 6.5 and 8
  • GH: Between 10 and 15
  • Temperature: Between 10ºC and 32ºC

These references imply the maximum that goldfish can bear. For example, from 32 ° C, your fish would be prone to die. Look for an intermediate point to feel good.


There are two elements that can help us a lot. The fan is a basic element of the aquarium, very important for the survival of the goldfish. It should be considered essential.

The other is the filter , perfect for good aquarium hygiene. If you do not have a lot of time it is a perfect option for the aquarium to be beautiful all the time.


Gravel is important because it has several functions. We can choose gravel as is the case of coral sand, which in thick grains is perfect if you are thinking of including vegetation. The thinner gravel can also be used, we recommend a neutral as is the case with silica sand.


It is great to enjoy a natural aquarium with plants, but we must mention that goldfish is a fish capable of devouring a wide variety of vegetation. You should look for those that are tough and tough like the Anubias . You can also opt for plastic plants.

Decorating your aquarium can be a very rewarding hobbie if you use creative options. We recommend using trunks, objects or led lights, very fun options.

Goldfish feeding

The second aspect to take into account is the feeding of goldfish, something that many people do not take into account and is quite important. The first thing you should know is that it is an omnivorous fish , something that doubles our possibilities.

Up to one year old can feed goldfish with scales, a regular product in any fish store. However, from that time on and to avoid disease of the air bag, you should start to feed it with natural products such as potatoes made from fish and natural vegetables. Boiled is a good option. You can also choose the red larva and fruit, although the latter should be given occasionally.

To know the amount needed for your fish, you should put some food and observe how much you eat in 3 minutes. The food left over will help you determine the exact amount you should give your fish.

Disease detection

Especially if you live with other fish, you should review your goldfish regularly to rule out possible diseases or the aggression of goldfish with other fish. Being alert helps you survive your specimens.

If you find a fish from the aquarium hurt or acting in a strange way, the most advisable will be to place it in a “hospital aquarium”. This is something that many fish fans have and it is a small aquarium that prevents the spread of disease and allows the fish to rest.

If you want to see more items like the Care of a Goldfish , we recommend that you enter ourBasic Care section .

Emily Harris

Hi Guys, Girls, and Cats:-p I am Emily Harris, and you can see in above pic. She loves me I swear. I saved her from a dumpster a few weeks back.

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