Research and designed by Shifu Tanks

Online Aquarium Calculators

Take the guesswork out of fishkeeping with AquaStream’s free aquarium calculators. From tank volume to filter flow rate and fish stocking levels, make precise decisions for a thriving aquatic ecosystem.

Why Use AquaStream’s Tools?

Accurate: Based on scientific formulas and real hobby data.
Trusted: Created by experienced fish keepers with years of hands-on experience.
Beginner-friendly: No sign-up needed; works on all devices.
Research-backed: Guides and articles on planted and community tanks.

FAQs

Are these tools free?

Yes! All AquaStream tools are completely free to use without a login or subscription.

Are these calculators accurate for saltwater tanks?

They work best for freshwater systems. Saltwater tanks may require extra adjustments due to biological load.

What’s the ideal flow rate for planted tanks?

Generally, 5–10× tank volume per hour. Adjust for plant density and filter type.

Can I use these tools for ponds?

Yes, the Volume and Flow Rate calculators work great for ponds too.

Do these tools work on mobile?

Absolutely. All AquaStream tools are responsive and work on phones and tablets.

AquaStream is created by Devagya Uikey (Shifu Tanks), an IT professional, aquarist, breeder, nature explorer, photographer, and 2× biotope aquarium contest winner. These tools come from years of real-world aquascaping experience to help you build a balanced and beautiful aquarium.