Camponotus castaneus
Temperature
22–28 °C
Humidity
50–70%
Colony size
2,000–10,000
Queen size
15–17 mm
Worker size
7–13 mm
Hibernation temp
8 °C
Diet
Care Guide
Camponotus castaneus, often called the golden carpenter ant, is one of the most beautiful and rewarding species for new keepers. The queen, a stunning amber-orange, measures 15–17 mm, while workers range from 7–13 mm and display a gentle size variation rather than the dramatic polymorphism seen in some other *Camponotus*. Their coloration ranges from rich honey to reddish-brown, making them a striking addition to any formicarium. These ants are claustral founders, meaning the queen seals herself away and raises her first brood without needing food—perfect for a low-maintenance start.
One of the most endearing traits of *Camponotus castaneus* is their calm, steady demeanor. They forage nocturnally and are not as aggressive as some other carpenter ants, but they are active and curious once established. Their diet is straightforward: they need a balanced mix of carbohydrates and protein. Offer sugar water or honeydew during the day and supplement with small insects like fruit flies, mealworms, or cricket pieces. They will also eagerly take a protein jelly or boiled egg. Keep food fresh and remove leftovers to prevent mold.
Care difficulty
Keeping *Camponotus castaneus* is well-suited for beginners. Their claustral founding eliminates the need for feeding during the first weeks, and their robust nature tolerates minor fluctuations in temperature and humidity. The main requirement is a clean, stable environment with a warm spot around 22–28°C and humidity kept between 50–70%. A dry outworld with a humid nesting area works best. These ants do require a winter diapause: gradually lower the temperature to about 8°C for two to three months, then slowly bring them back up in spring. Skipping hibernation can weaken the colony over time.
Housing
A formicarium with a test tube or small acrylic nest connected to a spacious outworld works perfectly for young colonies. As they grow, they will appreciate larger chambers with good ventilation. The nest area should be kept slightly moist, but avoid waterlogging—*Camponotus* dislike stagnant wet conditions. Provide a substrate in the outworld (like sand or fine gravel) and a water source that is safe from drowning. These ants are not heavy diggers but will use soft material if offered. Place the setup in a quiet, dim location; vibration and bright light can stress them, especially during early growth.
First days after purchase
After receiving your colony, transfer the queen and her first workers (if any) into a test tube setup or the prepared formicarium. Keep them in a dark, undisturbed area for at least 48 hours. Offer a tiny drop of honey water near the nest entrance—they will take it when ready. Avoid opening the nest frequently; instead, observe through the glass or tubing. Patience is key. Within a week, you should see foraging activity. Once the colony reaches about 20 workers, you can begin offering small insects and expanding their outworld. With steady care, your *Camponotus castaneus* will grow into a calm, golden army that is a true joy to watch.