1. What is the Aquarium Stocking Ratio?

The aquarium stocking ratio is a guideline that helps determine how many fish can be safely kept in an aquarium based on their total length and the tank's volume. It provides a simple way to prevent overstocking.

2. How Does the Calculator Work?

The calculator uses the stocking ratio formula:

Where:

• Total Fish Inches — Sum of all fish lengths in inches
• Gallons — Volume of the aquarium in gallons

Explanation: The ratio indicates how many inches of fish you have per gallon of water. A common recommendation is 1 inch of fish per gallon for beginners.

3. Importance of Stocking Ratio

Details: Maintaining an appropriate stocking ratio is crucial for fish health, water quality, and overall aquarium balance. Overstocking can lead to poor water conditions and stressed fish.

4. Using the Calculator

Tips: Measure your fish from nose to tail (excluding fins). Enter the sum of all fish lengths in inches and your aquarium's volume in gallons. Both values must be greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: Is the 1 inch per gallon rule always accurate?
A: It's a general guideline. Large-bodied fish, messy eaters, or fish with high oxygen needs may require more space.

Q2: How does filtration affect stocking capacity?
A: Superior filtration can allow slightly higher stocking, but the ratio should still be followed as a baseline.

Q3: Should I use adult fish sizes?
A: Yes, always calculate based on the adult size of the fish, not their current size.

Q4: Does tank shape affect stocking?
A: Tall, narrow tanks hold less oxygen than wide tanks of the same volume, which may require lower stocking.

Q5: What about planted tanks?
A: Heavily planted tanks can often support slightly more fish due to improved water quality from plants.