Aquarium builder for planning better fish tanks
Plan your aquarium properly before it becomes an expensive glass box full of regrets.
TanksConnected helps fishkeepers build a clear tank profile with volume, dimensions, filters, fish stocking, maintenance and water quality records.
Quick tank size and setup checks
Use these quick aquarium calculators when you need rough planning numbers before creating a full saved tank profile.
- How many litres is my fish tank?
- Fish tank size calculator
- Aquarium volume calculator
- Tank size calculator in litres
- How much substrate do I need for my aquarium?
- What filter turnover do I need for my tank?
This public preview gives you a quick feel for the feature. Create a free account to save your own tanks, add livestock, record test results, and keep your aquarium history together inside TanksConnected.
Quick aquarium planning tools
Work out your tank volume, rough substrate amount and filter turnover before creating a saved aquarium profile.
Tank volume calculator
Enter internal tank dimensions in centimetres.
Use actual water height where possible, not just the glass height.
Substrate calculator
Estimate substrate for the same tank footprint.
Weight varies by sand, gravel, soil and moisture. Treat kg as a buying estimate, not gospel.
Filter turnover calculator
Check basic filter flow against tank volume.
Real flow is often lower once media, hoses and head height are involved.
Extra aquarium planning guidance, FAQs and related tools
Plan the tank
Start with the aquarium size, volume and equipment so your setup matches the fish you want to keep.
Build the stocking list
Add fish carefully and use stocking guidance to avoid cramming too much life into too little water.
Track the routine
Log water changes, test results and maintenance so problems are easier to spot before fish suffer.
A better way to build an aquarium
Good fishkeeping starts before the fish go in. TanksConnected gives you a practical place to plan the tank, then keep managing it once it is running.
Frequently asked questions
What is an aquarium builder?
An aquarium builder helps you plan a fish tank by organising tank size, volume, filtration, stocking, maintenance and water testing in one place.
Why should I plan an aquarium before buying fish?
Planning first helps you choose fish that suit the tank size, filtration, water conditions and long-term maintenance routine instead of fixing problems later.
Should filtration be planned with stocking?
Yes. Filtration and stocking should be planned together because larger or messier fish produce more waste and may need stronger flow, more media and larger water changes.
Can TanksConnected help after the tank is set up?
Yes. TanksConnected is designed to help after setup too, with tank profiles, stocking records, water test logs, water changes and maintenance notes.