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Calculate aquarium water volume, weight, and fish capacity. Enter tank dimensions for gallons, liters, and more.
Typical fill is 90-95% (leave room for gravel, decor)
| Size | Dimensions (L×W×H) | Weight Full |
|---|---|---|
| 10 gal | 20×10×12" | ~111 lbs |
| 20 gal Long | 30×12×12" | ~225 lbs |
| 29 gal | 30×12×18" | ~330 lbs |
| 55 gal | 48×13×21" | ~625 lbs |
| 75 gal | 48×18×21" | ~850 lbs |
You need to leave space for equipment (filters, heaters), decorations, gravel/substrate, and to prevent splashing. 90-95% fill is typical.
Water weighs about 8.34 lbs/gallon. A 55-gallon tank holds about 458 lbs of water, plus the tank itself (~80 lbs), gravel (~60 lbs), and equipment. Total: 600-650 lbs!
A rough guideline: 1 inch of adult fish length per gallon. However, this varies by species, fish shape, filtration, and maintenance. Research specific fish needs.
Check floor load capacity. Large tanks should go on stands that distribute weight and be placed perpendicular to floor joists. Concrete floors are best for 100+ gallon tanks.
A standard tank has 5 panels: front, back, 2 sides, and bottom. Add overlap for silicone joints. Glass thickness depends on tank height (larger = thicker).
Yes, the curved front adds volume compared to a flat front with the same footprint. However, the added volume is typically 10-15%, not dramatically more.