🐟 Pet Aqua Fish Tank Stocking Calculator

Calculate the perfect stocking level for your aquarium and avoid overstocking

Tank Configuration

Tank Size

Unit

Water Type

Temperature Unit

Fish Size Unit

Stocking Level Rule

Using UK Standard Old School rule: 1 cm of fish per litre of water. This traditional guideline requires good filtration and regular maintenance.

Stocking Level

Understocked 0 / 0 cm

Tank Capacity

80 L

Fish Count

Total Bioload

0 cm

Status

✓ Good

Add Fish

Select Fish Species

Quantity

Fish Name *

Adult Size (inches) *

Water Type *

Min Temperature (°F) *

Max Temperature (°F) *

pH Range

Bioload *

Temperament *

Schooling

⚙️ Advanced Behavior Settings

🦷 Fin Nipper (e.g., Tiger Barbs, Serpae Tetras) Check if this fish nips the fins of long-finned tankmates

🎀 Long-Finned (e.g., Bettas, Angelfish, Fancy Guppies) Check if this fish has long, flowing fins that may be nipped

🥊 Male Betta Only for male Bettas (enforces 1 per tank rule)

🏔️ African Malawi Cichlid Only for Lake Malawi species (can ONLY mix with other Malawi cichlids)

🦈 Predatory Behavior (Optional) If this fish eats smaller fish, specify size threshold (e.g., "small fish under 2 inches")

📏 Minimum Tank Size (Optional) Minimum tank size in litres (e.g., Oscars need 200L, Goldfish need 150L)

📝

No custom fish added yet. Use the "Add Custom Fish" tab to create your own!

Current Stock

Excellent Match

Good Match

Needs Attention

Incompatible

🐟

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