What Do Fishkeeping Enthusiasts Mean by 30/40/50 Tanks? Aquarium Size Selection Standards

Actually, the length of an aquarium usually refers to the common sizes found on the market. Here are some specific size data (length * width * height):

1. 30 Tank Size: 30*17*20 centimeters;
2. 40 Tank Size: 40*23*25 centimeters;
3. 50 Tank Size: 50*27*30 centimeters;
4. 60 Tank Size: 60*30*35 centimeters.

Aquarium Manufacturing and Cost

Usually, the aquariums we purchase on major e-commerce platforms are made according to these dimensions, which means these data have strong representativeness. Therefore, aquarium manufacturers have a convention to produce aquariums according to these sizes to achieve mass production, thereby reducing costs. If each size were different, the cost would rise significantly, and we would not be able to buy the affordable aquariums we see today.

Brand Aquarium Sizes

Most of the aquariums on the market, especially branded ones, are made based on these data. Of course, there are also many other sizes of aquariums on the market, such as 60 tanks, in addition to the common 60*30*35, there are also 60*30*30, 60*40*40, and other sizes.

Larger Aquarium Sizes

So, some friends might ask, what are the sizes of aquariums longer than 80 centimeters? The common sizes of aquariums longer than 80 centimeters include 80*40*40, 100*50*50, and 120*50*50, etc., all of which are standard sizes.

The Advantages of Cubical Tanks

In addition to the standard sizes mentioned above, many vendors are also selling cubical tanks. In fact, the prices of many cubical tanks are relatively low, and the quantity produced by vendors in mass is also high, so cubical tanks are more favored by fishkeeping enthusiasts.

30-Centimeter Cubical Tank

Firstly, the 30-centimeter cubical tank is the most common on the market. The so-called 30 cubical tank refers to a size of 30*30*30 centimeters. However, due to the limited space, it is not recommended for friends who have certain requirements for the number of fish to purchase this type of tank.

40-Centimeter and 60-Centimeter Cubical Tanks

By the same token, 40-centimeter and even 60-centimeter cubical tanks are very suitable for novice fishkeeping enthusiasts. Although the size is only 40 centimeters or 60 centimeters, they are cubical tanks! In terms of volume, the water volume of a standard 40-centimeter tank is 24 liters, while the water volume of a standard 40-centimeter cubical tank is 64 liters, and the water volume difference between a 40-centimeter regular tank and a 40-centimeter cubical tank is more than 2.5 times.

Water Volume Comparison

Therefore, the water volume of a 40-centimeter cubical tank is 64 liters, and that of a 50-centimeter cubical tank is 125 liters! Although they only differ by 10 centimeters, the water volume difference is vast! We all know that the larger the water volume, the more stable the water quality, and the more at ease fishkeeping becomes. Therefore, novice friends, if conditions permit, please choose cubical tanks whenever possible.