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Ideal Choice โœ…

Can a Gerbil ๐Ÿญ Live in a 40 Gallon Breeder Glass Tank?

Enclosure suitability guide for housing Gerbils in a 40 Gallon Breeder Glass Tank.

Enclosure Type
glass tank
Floor Space
4.5 sq ft
Dimensions
36"L ร— 18"W ร— 16"H
Gerbil Minimum
2.5 sq ft
Verdict
Ideal Choice โœ…
๐Ÿ’ฐ Typical Price: $60โ€“$150

Our Verdict

A 40 gallon breeder tank is an excellent choice for a pair or trio of gerbils, providing ample space for complex tunnel networks.

At 648 sq in, the 40 gallon breeder provides well above the minimum for a pair and meets the guideline for a trio. Fill 6-8 inches deep with a peat/sand/hay mix to enable complex burrowing networks. A mesh lid is essential.

Pros & Cons of the 40 Gallon Breeder Glass Tank

โœ… Pros

  • Excellent floor space for hamsters
  • Deeper than standard tanks โ€” supports 6"+ substrate
  • Escape-proof
  • "Breeder" proportions maximise floor area vs height

โŒ Cons

  • Heavy (~55 lbs empty)
  • Requires a secure mesh lid
  • Limited vertical enrichment options

What Gerbils Need in an Enclosure

Gerbils need both burrowing depth and vertical climbing space. A "gerbilarium" โ€” a deep-substrate tank base topped with a wire section โ€” is the gold standard. Pure wire cages are unsuitable as gerbils will chew through plastic fittings and escape. Always house at least two.

โš ๏ธ Things to Avoid for Gerbils

  • Housing a single gerbil alone โ€” causes severe stress and early death
  • All-plastic enclosures โ€” gerbils chew through everything
  • Wire cages without a deep substrate base
  • Enclosures under 20 gallons for a pair
  • Hamster-marketed cages โ€” nearly all are too small

Frequently Asked Questions

  • How many gerbils can live in a 40 gallon tank?
    A 40 gallon breeder comfortably houses 2-3 gerbils using the 10-gallons-per-gerbil guideline. It provides excellent space for a tunnelling network and enrichment.