Tank Size: 20 Gallons Per Pair, Minimum

A 20-gallon glass tank is the minimum floor space for two gerbils. If you have room for a 40-gallon tank, use it — more space means more natural behavior, better burrowing, and healthier, more active animals. Whatever tank you choose, it needs a secure mesh lid. Gerbils are fast, curious, and highly motivated to explore. A loose or poorly fitting lid is a real escape risk.

Substrate: Mix It for Best Results

A single substrate type won't give you the best outcome. Gerbils build more stable, realistic tunnels from a blended substrate. A good combination is:

• Peat moss — provides the moisture and structure needed for tunnels to hold their shape
• Timothy hay — adds reinforcement and nesting material inside burrows
• Paper-based bedding — adds bulk and absorbs moisture

Mix these together and fill the enclosure to at least six inches of depth — eight to ten inches is better in most of the tank. Less than six inches and your gerbils can't build real tunnels, which defeats the purpose of a deep-substrate setup entirely.

Hideouts and Surface Enrichment

Even with a deep burrowing substrate, gerbils benefit from surface-level hides and enrichment. Wooden hides, cork logs, and cardboard tubes all work well. Gerbils will chew and rearrange these over time — that's expected and healthy. A gerbil-rearranged enclosure is a gerbil actively engaging with its environment. Don't stress about the enclosure looking tidy.

The Sand Bath

Gerbils use sand baths to clean and condition their coats. The correct material is fine chinchilla dust — the same volcanic dust product used for chinchillas. Regular sand is too coarse and can irritate eyes and respiratory systems. Offer the sand bath in a container wide enough for your gerbils to roll in freely, two to three times per week. Remove the container after 20 to 30 minutes to prevent dust buildup in the enclosure.

The Wheel Question

A wheel is optional for gerbils but provides genuine exercise benefit. If you include one, use a solid-surface wheel only — never barred or mesh. Barred wheels cause foot and tail injuries. A six-to-eight-inch solid wheel is appropriate for a standard pair. Not all gerbils take to wheels, but many do, particularly during nighttime activity periods.

Foraging Enrichment

Scatter a portion of your gerbils' daily food through the substrate rather than always placing it in a bowl. This engages their natural foraging instincts and keeps them mentally active throughout the day. You can also hide small food pieces in paper tubes or under objects to encourage problem-solving. These small enrichment habits make a meaningful difference in long-term wellbeing for animals that are wired to search and explore.

Enrichment: What Gerbils Need to Stay Active

A tank and substrate are only the foundation. Gerbils are high-energy, social animals that need mental and physical stimulation every day — or they get bored, destructive, and stressed.

• Solid-surface wheel: 8–10 inches diameter. Mesh or rungs cause foot and tail injuries — solid only. Gerbils will run miles per night
• Chew material: Untreated wood blocks, willow branches, cork logs, or coconut shells. Gerbils chew constantly — it's normal and healthy for their teeth
• Tunnels and hides: Cork tubes, terracotta pots, cardboard tubes (expect them to destroy the cardboard — that's the point)
• Foraging: Scatter small portions of their food in the substrate instead of bowl-feeding. This triggers natural digging and searching behavior
• Nesting material: Plain white tissue paper or torn paper towel. Gerbils love building and rebuilding their nest

What to Feed Gerbils

Gerbils are omnivores — they eat seeds, grains, occasional insects, and plant matter in the wild. In captivity, a balanced commercial gerbil food is the base, supplemented with fresh foods and the occasional protein boost.

• Base diet: A quality lab block or mixed gerbil seed blend. Seed mixes allow selective eating — gerbils will often choose high-fat seeds first and leave the rest
• Fresh vegetables: Small amounts of broccoli, cucumber, carrot, romaine lettuce. Limit watery vegetables — too much causes loose stools
• Protein treats: Occasional mealworms or small crickets are relished and mimic their natural diet
• Avoid: Citrus fruits, onion, garlic, chocolate, grapes/raisins, apple seeds, high-sugar fruits
• Fresh water: Provided daily via a sipper bottle attached to the tank wall

Social Needs: Gerbils Must Be Kept in Pairs

Gerbils are intensely social animals — solitary gerbils develop stress-related behaviors and have significantly shorter lifespans. Always keep gerbils in same-sex pairs or small groups. Brothers from the same litter are the easiest pairing. Introductions between gerbils who didn't grow up together require a structured split-cage method and should be done slowly over 1–2 weeks.

Handling and Taming Your Gerbils

Gerbils are naturally curious but can be skittish at first. Building trust takes time — rushing it causes stress and sets back socialization.

• Start by placing your hand in the tank without trying to pick them up. Let them approach you
• Move to cupped-hand scooping — support the full body rather than grabbing by the scruff or tail
• Never hold a gerbil by the tail — the skin can detach (degloving) and this is a serious injury
• Short, frequent sessions are better than long, infrequent ones
• Hand-fed treats speed trust significantly

Health and Common Gerbil Problems

• Epileptic seizures: Surprisingly common in gerbils — brief episodes of twitching or jerking. Usually minor and self-limiting. Triggered by stress or sudden light changes. Minimize handling during episodes
• Nasal dermatitis ("red nose"): Raw or crusty skin around the nose from overgrooming or bedding irritation. Ensure proper humidity and check for abrasive substrate materials
• Dental malocclusion: Overgrown or misaligned teeth. Signs include drooling, weight loss, and difficulty eating. Requires veterinary attention
• Aural cholesteatoma: Middle ear condition more common in older gerbils. Look for head tilting, loss of balance, or circling behavior

Frequently Asked Questions About Gerbil Housing

Can gerbils live alone?

Gerbils can survive alone, but they should not live alone. Solitary gerbils show higher stress hormone levels, are more prone to stereotypic behaviors (repetitive pacing or digging), and tend to have shorter lifespans. Always house gerbils in same-sex pairs or trios at minimum.

How deep should gerbil bedding be?

At least 6 inches, ideally 8–10 inches in the bottom two-thirds of the tank. Gerbils are natural burrowers — shallow bedding prevents them from expressing normal behavior. Deep bedding also stays cleaner longer, as gerbils tend to use specific bathroom areas and bury waste.

Can gerbils and hamsters live together?

No. Gerbils and hamsters have very different social and territorial needs. Hamsters are solitary animals; gerbils are social. Beyond behavioral incompatibility, they can injure each other. Each species needs its own separate housing.

How often do you need to clean a gerbil tank?

Full substrate changes every 3–4 weeks, with spot-cleaning as needed in between. Gerbils are naturally clean animals and tend to use a corner of the tank as a bathroom — spot-removing soiled substrate from that area every few days extends the time between full cleanings. Always preserve some of the old, unsoiled substrate to retain familiar scent when you do a full change.

What size wheel does a gerbil need?

A 8-inch solid-surface wheel is the minimum — 10 inches is better. The wheel must have a flat, solid running surface (not rungs, mesh, or spokes) to protect feet and tails. Popular options include the Niteangel and Wodent Wheel ranges. Gerbils run significantly more than most owners expect — a good wheel is one of the best investments in their health.