125 gallon aquarium dimensions
Andrew Walker
Updated on May 29, 2026
How big is a 125 gallon fish tank? A typical 125 gallon aquarium is equivalent to 473.2 L. The standard dimensions are 72″ L x 18″ W x 21″ H (182.9 L x 45.7 W x 53.3 H cm). These may vary given the shape and design of the individual tank.
How many fish can be in a 125 gallon tank?
A tank of this size could easily keep a shoal of up to 100. Bettas: Both males and females can be aggressive and territorial. A tank of this size will provide enough space to keep either a sorority of females or a single male, with fast, peaceful fish like Ember Tetras.
How much does a 125 gallon tank weigh with water?
How Much Does a 125 Gallon Fish Tank Weigh. A glass 125 gallon fish tank that measures 72” x 18” x 20” will weigh 995 pounds when it is completely filled with freshwater. The same 125 gallon glass tank, on the other hand, will weigh 1,018 pounds if it is a saltwater tank.
How big is a 125 Litre fish tank?
80cm x 35cm x 72cm (L x W x H) Capacity: 125 litres.
Will my floor hold a 125 gallon aquarium?
Conclusion. Aquariums up to 55 gallons can be placed almost anywhere without much worry at all. Many tanks larger than 55 gallons and no more than 125 gallons will be okay, if they are placed in a good structural location and your floor framing is free from significant defects.
How many fish can I put in a 120 gallon tank?
One Inch Per Gallon
The most widely known rule for stocking a tank is the one inch of fish per one or two gallons of water rule.
How many pounds of sand do I need for a 125 gallon tank?
so 150-160 pounds should do you good.
Can you over filter fish tank?
An aquarium can be over-filtered because large filters have large pumps that can move the water too quickly. When the water is cycled at an excessive rate, spread sediment all over the tank, push the fish around, and more. The water should pass through the filter four times an hour.
Can my floor support a 100 gallon aquarium?
Yes, it can. Put it over as many joists as possible, and you’ll be fine. If it’s in the basement, as in over carpeted concrete, you could place just about any sized tank you want.
How many gallons is a 40 breeder?
Registered. The typical 40 G Breeder tank dimensions are: roughly 36 X 18 X 17 and hold 40 gallons of water.
How thick is the glass on a 125 gallon aquarium?
Location: Corona Ca. My 125, 72 inches long, is 1/2 inch glass.
What are the dimensions of a 150 gallon fish tank?
Dimensions – 48 inches x 24 inches x 31 inches (length x width x height)
How big is a 120 gallon propane tank?
120 Gallon Tank – Vertical/Horizontal
Each vertical tank is 54.5” in height and 30” in diameter. It is also known as a 420 lb. tank. The recommended minimum pouring pad size: 3.5 x 3.5 feet, 6” deep.
How big is a 200l tank?
At a glance:
100cm x 40cm x 73cm (L x W x H) Capacity: 200 litres.