125 Gallon Dimensions & Filled Weight
Monster fish, large predatory cichlids, massive planted scapes.
Quick Specs
Standard 125 Gallon Specifications:
- Dimensions (US & Metric): 72" × 18" × 22" (182.9 cm × 45.7 cm × 55.9 cm)
- Total Filled Weight: Approximately 1248 lbs (566 kg) including water and standard gravel.
- Empty Tank Weight: 206 lbs (93 kg).
Measurements
- Gross Volume 125 Gallons
- Empty Glass Weight 206 lbs
- Approx. Filled Weight 1248 lbs
Recommended Gear
- Target Filter Turnover 700 GPH
- Base Heater Wattage 600 Watts
How Much Sand Does a 125 Gallon Need?
A standard 1.5-inch bed requires approximately 100 lbs of aquarium sand or 50 L of active aqua soil.
Customize Substrate Bed →Floor Load & Stand Safety
At approximately 1248 lbs, the 125 Gallon exerts a specific pounds-per-square-foot (PSF) structural load on your home's flooring. The footprint area is 9.00 sq. ft, meaning the raw PSF is roughly 139 PSF.
Heavy Load Warning: This aquarium size requires caution on upper-level floors. It is highly recommended to place this tank perpendicular to structural joists rather than parallel to them to distribute the load across multiple beams.
Frequently Asked Questions
What are the dimensions of a 125 Gallon in inches and cm? ▼
A standard 125 Gallon measures 72" L × 18" W × 22" H (182.9 cm × 45.7 cm × 55.9 cm).
How much does a 125 Gallon weigh filled? ▼
When filled with water and average substrate, a 125 Gallon weighs approximately 1248 lbs (566 kg). Always ensure your stand and flooring can support this weight.
How much sand do I need for a 125 Gallon? ▼
For a standard 1.5-inch bed, a 125 Gallon requires approximately 100 lbs of aquarium sand or 50 L of active aqua soil.