Planted aquarium calculators and checklists
Quick tools for the questions that come up while planning and keeping a planted tank. They run entirely in your browser: no account, no email, and nothing you enter is sent anywhere. Each one states its assumptions so you know where the numbers come from.
Substrate calculator
Liters and cubic feet of substrate for a flat or sloped bed, with an optional weight estimate from the maker's published density.
Aquarium volume calculator
Actual water volume from inside dimensions and water height, which is usually less than the size printed on the box.
Plant problem checklist
Match what you see to possible explanations and the safest first checks. It narrows things down; it doesn't diagnose.
Maintenance checklist
A routine tailored to your filter, livestock, CO2, and fertilizers: what to glance at daily, do weekly, and check every few weeks.
Planning a whole setup? The setup finder builds an equipment checklist from your tank size and growing style.