90 Gallon
90 Gallon is a 121.9 × 45.7 × 61 cm (48 × 18 × 24 in) aquarium, rated at 341 L (90 gal). Its footprint is 121.9 × 45.7 cm and the water stands about 55 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.
At a glance
| Size | 121.9 × 45.7 × 61 cm (48 × 18 × 24 in) |
|---|---|
| Volume | 341 L (90 gal), as sold |
| Water after substrate | About 282 L (74 gal) with a 6 cm substrate layer |
| Footprint | 121.9 × 45.7 cm (48 × 18 in) |
| Water depth | 55 cm (21.7 in) |
| Substrate needed | About 33 L for a 6 cm layer |
Before it goes in
- 90 Gallon is 121.9 × 45.7 × 61 cm (48 × 18 × 24 in) — rated at 341 L (90 gal), and roughly 282 L (74 gal) of actual water once a 6 cm substrate layer and the hardscape are in.
- That layer takes about 33 L of substrate, which is what you order by.
- 152 of the 160 animals in this library list a minimum tank at or under 341 L (90 gal). The biggest of them that still fit are Chinese Algae Eater and Kissing Gourami. Common Pleco and Black Ghost Knifefish need more than this.
- The water sits about 55 cm (21.7 in) deep over the substrate. Plants that get taller than that — Hygrophila corymbosa 'Siamensis' and Cabomba — reach the surface and start growing along it, which is a look you either want or trim.
- Its footprint is 121.9 × 45.7 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?
121.9 × 45.7 × 61 cm (48 × 18 × 24 in).
How much water does it hold?
It is sold as 341 L (90 gal), and roughly 282 L (74 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 33 L for a 6 cm layer.
What fits in it?
152 of the 160 animals in this library list a minimum tank at or under its volume, and the water depth of about 55 cm sets which plants can grow without reaching the surface.
What fits in it
- Animals this size will hold: Chinese Algae Eater, Kissing Gourami, Discus, Silver Dollar and Yoyo Loach.
- Plants that stay under its water line: Water Sprite, Anubias nana 'Petite', Cryptocoryne wendtii and Dwarf Hairgrass Mini.