150 gallon fish tank size and measurements
How big is a 150 gallon tank? It is about 6.0 feet long (72 in), 18 inches from front to back and 28 inches tall, so it needs a stand or space at least 72 x 18 inches.
- Outside dimensions
- 72 x 18 x 28 in182.9 x 45.7 x 71.1 cm
- Volume
- 150 US gal568 L, 125 UK gal
- Footprint
- 9.0 sq ft1,296 sq in
- Water weight
- 1,251 lb567 kg
Checked against the manufacturer's specs: the Aqueon 150 gallon measures 72 1/2 x 18 1/2 x 29 1/2 in outside, 281 lb empty. The size above is the rounded standard size most charts use.
Measured from the outside, these dimensions hold about 157.1 US gallons. Real water volume is lower because of glass thickness, substrate, decor and the gap below the rim. Check the real figure with the aquarium volume calculator.
How much does a 150 gallon tank weigh?
A 150 gallon tank weighs about 1,682 lb (763 kg) once set up, counting the empty glass (281 lb), the water and 2 inches of gravel. Use a stand rated for the full weight, on a level floor. The fish tank weight guide compares every size.
How much gravel or sand for a 150 gallon tank?
| Bed depth | Gravel | Sand | Aquasoil |
|---|---|---|---|
| 1 in (2.5 cm) | 75 lb | 71 lb | 21 L |
| 2 in (5.1 cm) | 150 lb | 142 lb | 42 L |
| 3 in (7.6 cm) | 225 lb | 214 lb | 64 L |
Based on a 72 x 18 in floor and typical bulk densities.
Different depth? Use the aquarium substrate calculator.
Heater and filter size for a 150 gallon tank
A common rule is 3–5 watts per gallon, so a 150 gallon tank needs about 450–750 W: two 300 W heaters, spread along the tank suits most rooms. Use the higher end in cold rooms.
For filtration, aim to turn the water over 4–6 times an hour: a filter rated around 600–900 gallons per hour.
Fish that suit a 150 gallon tank
- African cichlids
- Large schools of rainbowfish
- Larger community fish
- Marine fish-only or reef setups
Starting ideas only. Check each species' adult size, temperament and water needs before buying.
Compare nearby sizes
- Next smaller: 125 gallon, 72 x 18 x 21 in
- Next larger: 180 gallon, 72 x 24 x 24 in
- Same 72 x 18 in footprint: 100 gallon, 18 in tall
See every size in the aquarium size chart.
Frequently asked questions
What are the dimensions of a 150 gallon tank?
A standard 150 gallon aquarium measures about 72 x 18 x 28 inches (182.9 x 45.7 x 71.1 cm), length x width x height. Brands vary by a fraction of an inch.
How long is a 150 gallon tank?
About 72 inches (182.9 cm), or 6.0 feet.
How big is a 150 gallon tank?
It is about 6.0 feet long, 18 inches deep and 28 inches tall, and takes up 9.0 square feet of floor.
How much does a 150 gallon tank weigh when full?
About 1,682 lb (763 kg) once set up, counting the empty glass (281 lb), the water and 2 inches of gravel.
How much gravel do I need for a 150 gallon tank?
For a 2 inch bed, about 150 lb of gravel or 142 lb of sand.
What size heater does a 150 gallon tank need?
About 450–750 watts in total, so two 300 W heaters, spread along the tank suits most rooms.
Last updated .