29 Gallon

29 Gallon is a 76.2 × 30.5 × 45.7 cm (30 × 12 × 18 in) aquarium, rated at 110 L (29 gal). Its footprint is 76.2 × 30.5 cm and the water stands about 39.7 cm deep once a 6 cm substrate layer is in — the two numbers that decide what you can plant in it and what you can stock it with.

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At a glance

Size76.2 × 30.5 × 45.7 cm (30 × 12 × 18 in)
Volume110 L (29 gal), as sold
Water after substrateAbout 85 L (22 gal) with a 6 cm substrate layer
Footprint76.2 × 30.5 cm (30 × 12 in)
Water depth39.7 cm (15.6 in)
Substrate neededAbout 14 L for a 6 cm layer

Before it goes in

  • 29 Gallon is 76.2 × 30.5 × 45.7 cm (30 × 12 × 18 in) — rated at 110 L (29 gal), and roughly 85 L (22 gal) of actual water once a 6 cm substrate layer and the hardscape are in.
  • That layer takes about 14 L of substrate, which is what you order by.
  • 131 of the 160 animals in this library list a minimum tank at or under 110 L (29 gal). The biggest of them that still fit are Pearl Gourami and Congo Tetra. Electric Blue Acara and Angelfish need more than this.
  • The water sits about 39.7 cm (15.6 in) deep over the substrate. Plants that get taller than that — Hygrophila corymbosa 'Siamensis' and Water Sprite — reach the surface and start growing along it, which is a look you either want or trim.
  • Its footprint is 76.2 × 30.5 cm, and that is the area a carpet has to cover — the number that decides how many pots you buy, not the volume.

What are its dimensions?

76.2 × 30.5 × 45.7 cm (30 × 12 × 18 in).

How much water does it hold?

It is sold as 110 L (29 gal), and roughly 85 L (22 gal) of actual water once the substrate is in. Stocking works off the second number; minimum-tank-size advice works off the first.

How much substrate does it take?

About 14 L for a 6 cm layer.

What fits in it?

131 of the 160 animals in this library list a minimum tank at or under its volume, and the water depth of about 39.7 cm sets which plants can grow without reaching the surface.

What fits in it

Often compared with

29 GallonJuwel Lido 120Juwel Rio 125
Size76.2 × 30.5 × 45.7 cm61 × 41 × 58 cm81 × 36 × 50 cm
Volume110 L120 L125 L
Footprint76.2 × 30.5 cm61 × 41 cm81 × 36 cm
Water depth39.7 cm52 cm44 cm

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