A 75-gallon aquarium weighs approximately 850 pounds when filled with water, equipment, and substrate.
A standard 75-gallon glass aquarium weighs about 140 pounds empty. When filled with water, substrate, and equipment, the total weight reaches around 850 pounds. This includes 600 pounds for water, 100 pounds for substrate, and 110 pounds for the tank itself.
Weight Breakdown by Component
- Empty tank: 140 pounds
- Water (75 gallons): 600 pounds
- Substrate (gravel/sand): 100 pounds
- Equipment and decorations: 10 pounds
Weight Comparison by Material
| Material | Empty Weight | Filled Weight |
|---|---|---|
| Glass | 140 lbs | 850 lbs |
| Acrylic | 90 lbs | 800 lbs |
| Tempered glass | 160 lbs | 870 lbs |
Support Requirements
The filled aquarium requires a stand that can support at least 900 pounds. Floor structures must handle concentrated weight - ideally over a load-bearing wall or with additional support beams. Never place a filled 75-gallon aquarium on furniture not designed for aquariums.