Goldfish can grow up to 14 inches depending on species. Goldfish are hardy fish but this is born not to live in a small bowl. Minimum you need 30-40 gallon fish tank to keep two numbers of goldfish. So try not to place two goldfish in 20-gallon tank. Now if two goldfishes are placed in a 20-gallon tank then the nitrogen cycle of fish tan would be disrupted. Two goldfishes can be placed in a 20-gallon fish tank forcefully but this is not recommended because goldfish evacuates a huge amount of wastes and 20-gallon tank for one goldfish is enough. Read more:- Know the causes and solutions of the cloudy goldfish tank Can you put more than one goldfish in a 20-gallon tank? But you can provide less amount of space also if you donвЂ™t want to spend more on the fish tank. These tank spaces are most recommended for these types of goldfishes. To keep oranda goldfish you need an 80-gallon tank. To keep two Shubunkin goldfishes you need a 90-gallon fish tank. If you want to keep two comet goldfish then you need a minimum of 100 gallon. The fishes are Comet goldfish, Oranda Goldfish, Shubunkin goldfish. There are three types of goldfish that grow more than 8 inches and grow up to 12-18 inches. But if you want to put more than one goldfish then you have to provide an extra 10-gallon space for an extra one piece of goldfish.Д«ut this is not the thumb rule for all types of goldfish. This is the chart from where you may understand the space of goldfish that is needed to thrive. How many goldfish you can put in a tank? Goldfish Types Now letвЂ™s discuss this topic comprehensively.

ThatвЂ™s why these types of goldfish need 75 gallon and 50-gallon tank for one fish respectively. Shubunkin goldfish and comet goldfish both can grow up to 12 inches long. More than one fish needs an extra 10 gallon of water. Among 11 types of goldfish, 9 types of goldfish need 20-30 gallon fish tank for one fish. Well, this answer depends on its various types.

But there is a common question out there and that is how many goldfish you can put in a tank. They all want to keep this fish at the very beginning because this is very friendly and colorful.

Goldfish is a very common fish among all aquarists.

30 gallon goldfish aquarium