One tablespoon a day for a Mongolian gerbil
A Mongolian gerbil needs roughly one tablespoon of gerbil seed mix or rodent lab blocks daily per animal, and that modest amount surprises owners used to filling bowls. In a pair or group, measure a tablespoon per gerbil rather than eyeballing one shared heap. Scatter the ration through the top layer of deep bedding instead of using a dish: digging food out of the substrate is a large part of how a desert species spends its day, and it slows down eating in a way a bowl never does.
The hoard in the corner is not hunger
A Mongolian gerbil carries food in its cheek pouches and buries it in a chosen cache, usually inside a tunnel or under a hide. Finding a neat pile of uneaten mix during a clean-out means your gerbil is behaving normally, not that yesterday's ration went missing. The feeding mistake caches cause is topping up extra to compensate, which quietly doubles the ration. Instead, reduce fresh offerings slightly when a cache is large, and spot-clean around it rather than removing the whole store, which stresses an animal that plans around its reserves.
What the mix should and should not contain
A gerbil mix built on grains, small seeds, and dried legumes suits a Mongolian gerbil's desert ancestry, and plain lab blocks alongside prevent selective feeding, where the gerbil eats only the tasty pieces and leaves the balanced ones. Sunflower seeds and peanuts are very fatty for an animal this size, so treat them as hand-fed rewards of one or two seeds rather than a mix ingredient it can graze on all day. Fresh vegetables — a thumbnail of carrot, broccoli, or cucumber — a few times a week adds variety without upsetting a gut adapted to dry food.
Water and the dry-diet balance
Even on a dry desert-style diet, a Mongolian gerbil needs a working water bottle checked every day, because a stuck ball bearing in the sipper tube is a common silent failure. Gerbils drink little and produce dry droppings, so any sudden increase in water intake or wet bedding around the bottle is worth noting. Keep the enclosure's food dry too: cached seed that gets damp near a leaking bottle can mold inside the tunnel where you cannot see it.
Pups and elderly gerbils at the same scatter
Growing Mongolian gerbil pups and nursing mothers need more than the adult tablespoon, with extra protein from a little plain cooked egg or a few mealworms offered on top of the mix until the pups are fully weaned and independent. At the other end of life, an elderly gerbil with worn teeth may struggle with the hardest seeds in the mix; offering a small portion of soaked lab block alongside lets it keep eating without changing the rest of the group's routine or ration.
Watching condition on a very small animal
A healthy Mongolian gerbil feels sleek and muscular when it runs across your palm; visible plumpness around the middle on a tablespoon ration usually means too many fatty treats rather than too much mix. Weigh weekly on a gram scale, since changes show up in grams long before they show in the hand. A gerbil that stops foraging, leaves its cache untouched, or loses weight steadily should see a veterinarian familiar with small mammals. Recording the daily scatter, treat count, and weekly weight in KinsLe's Care Teams keeps your Mongolian gerbil's feeding pattern visible to everyone who shares its care.