Can 3 goldfish live in a 10-gallon tank?
As for the question about a 10-gallon tank, it is only suitable for one or two baby goldfish. As soon as they start outgrowing the tank, you will need to consider at least 20 gallons of space for every other fish.
What size tank do I need for 2 goldfish?
Based on the rules above, the goldfish tank size we recommend for two goldfish is: 42 gallons for two Common goldfish. That’s 30 gallons for the first fish and 12 additional gallons for the second fish. 30 gallons for two fancy goldfish.
How many fish is too many for a 10-gallon tank?
Initially, aim for around one small fish per gallon of water, adding them in small groups every couple of weeks. Once the aquarium is mature and your skills are honed, you should be able to keep two neon-tetra-size fish per gallon.
What size tank do I need for 3 goldfish?
Alone, they can live in a 10-gallon tank, but to be happy they need at least 20 gallons. And if you’re aiming for 3 or more goldfish (which is preferred), then 60 gallons is a safe size to opt for. For 6-8 goldfish, a 120 to 160-gallon tank is the optimum size.