Still Water

Aquarium equipment sized against the tank it has to run.

What this covers

Stands, filters, heaters, air pumps, substrate and tank footprints. Filter turnover against real flow rather than rated flow, heater wattage against volume, stand capacity against what a filled tank actually weighs.

How we work

• Specifications come from manufacturer listings, manuals and spec sheets — not from marketing copy or from another site’s summary.
• Every figure on the page is traceable to a source we link. Where two sources disagree, the guide says so rather than picking the flattering one.
• Products are compared on the dimension the question is about. A guide about depth ranks on depth, not on how heavy something is to ship.
• Nothing is recommended that we could not measure against the space it has to fit. Where a number does not exist, the guide says that instead of estimating one.

How this is paid for

Built from published specs, hobbyist builds and forum-documented results, with sources named in the text. Links may earn a commission, which has no bearing on what gets recommended.

Edited by Kenji Halvorsen.