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Aquarium Volume & Stocking Calculator

Calculate fish tank volume in gallons. See maximum fish stocking levels and filter flow rate for your aquarium.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

Volume

L×W×H (cm)/1000 = litres। 60×30×35 = 63L。 Weight filled: ~75+ kg。 Start: 60L minimum। Sobo, Sunsun: affordable Indian brands। Guppies, Mollies: easy beginners।

Indian Fish

Indian native: Puntius, Rasbora, Dwarf Gourami — beautiful and hardy। Imported: higher maintenance। Support local fish breeders!।

⚡ CalcWolf Insight

Fish tank calculator gets steady year-round traffic (15K/mo) with a dedicated hobbyist audience. Aquarium hobbyists are high-spending consumers — the average aquarium setup costs $500-2,000, and ongoing supplies are $30-50/month. Pet supply advertisers (Petco, Chewy) pay $3-8 CPC.

Frequently asked questions
Starter?
60L minimum। 8 Guppies + 4 Corydoras। ₹3,000-8,000 complete setup।
Indian native fish?
Puntius, Rasbora: beautiful, hardy, adapted to Indian water conditions।
✓ Math logic verified against primary sources → See our verification process
Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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Found a bug or outdated data? Reports go directly to Kevin and are reviewed personally.