Yes — with the right pairing, this species does well together
Long-tailed grass lizards, the slender, hugely long-tailed lizards of grassy Asian habitats, are unusually tolerant of their own kind by lizard standards. In the wild they live scattered through shared grassland rather than defending solitary territories fiercely, and in captivity a pair or small group can work well. The pairing is where success is decided. Two females are the most reliably peaceful combination. A male with one or more females can also live together, though the owner must be ready for breeding and for the demands eggs place on the female. Two males are the pairing to avoid: males posture, chase, and fight over basking positions and mates, and the loser in a glass box cannot do what a wild loser does, which is leave.
Space and layout decide whether sharing stays peaceful
Cohabitation fails most often because the enclosure was furnished for one lizard and asked to serve two. Each animal needs its own access to the essentials without crossing the other: at least two basking sites under heat, or one broad basking area both can use without contact, multiple hides and dense, grass-like planting that breaks sightlines, and climbing and perching routes at different heights. A longer enclosure matters more than a taller one for these ground-and-grass lizards, because horizontal escape routes are what let a subordinate animal end an encounter. Water and food should be offered at separate stations positioned apart, so the bolder lizard cannot guard every resource by sitting in one place. New arrivals should also be quarantined in a separate enclosure first and be closely matched in size, since a much smaller lizard reads as prey-sized competition to a larger one and will be chased and outcompeted at the food dish.
Feeding time is where bullying shows first
Even a peaceful pair competes at feeding, and the quieter lizard's decline is the earliest sign the arrangement is failing. Feed insects at both stations, or tong-feed the shyer lizard directly, and weigh both animals so a slow loss in the subordinate is caught on the scale rather than by eye. Warning signs that sharing has turned into bullying include one lizard always basking while the other stays hidden, bite marks or damaged skin, a tail dropped during a chase — these tails regrow, but the event signals real stress — and one lizard lunging at the other whenever food appears. Occasional brief chases in a breeding pair can be normal courtship behaviour, but chases that end with one animal cornered, bitten, or refusing to emerge are not courtship and should end the experiment.
When to separate, and keeping two records straight
Separation should be permanent and immediate if there are wounds, sustained hiding, or weight loss in one lizard, and a spare enclosure is part of the honest cost of trying cohabitation — never attempt a pair without one ready. Keep the two lizards' records distinct even while they share a home: who ate what, each animal's weight trend, and any injury belongs to an individual, not to the enclosure as a whole, because the whole point of monitoring a pair is noticing the one who is quietly losing. Sharing each lizard's profile, feeding notes, and weight checks with the family members who help care for them through KinsLe's Family Sharing means a bullied lizard's skipped meals get noticed by whoever feeds that day, not just by one observant owner.