Merulanella bicolorata is the name used in this care guide to date. In our store, we list the hobby strain described here as Merulanella spec. “Bicolor.” A definitive species identification cannot be derived from this. These strikingly patterned Isopods require consistently moist hiding places and good air circulation.


Merulanella bicolorata at a Glance
| Origin | Thailand |
| Temperature | up to 24 °C |
| Size | up to 1.8 cm |
| Substrate | Nutrient-rich soil with decomposed leaves and decayed hardwood |
| Humidity | Moist hiding places and a less moist alternate location |
The temperature figures are approximate values based on previous experience. Measure the temperature at the location of the box. Direct sunlight and an uncontrolled heat source can quickly cause the container to overheat.
The following card belongs to the series listed in the store as “Bicolor.”
Merulanella spec. “Bicolor”
Two-colored Merulanella!
Caring for Merulanella bicolorata: Enclosure and Environment
Choose an escape-proof box with securely covered ventilation openings. Larger species and growing groups require more floor space. Fill the enclosure with several centimeters of nutrient-rich soil and cover it with decomposed leaves. Flat pieces of bark provide hiding places. Pure coconut fiber is not a sufficient food source.
Keep the substrate under the hiding spots consistently slightly moist. However, the animals still need air circulation and a less damp alternative spot. Check the ground under the leaves with your finger: A dry surface doesn’t tell you much about how much moisture is present underneath.
Food for Merulanella bicolorata
Leaves and white-rotten hardwood should always be kept in the box. They serve as both food and shelter. You can collect clean, suitable leaves yourself; if you don’t have a safe place to collect them, pre-prepared leaf litter is a practical alternative.
Fodder leaves
Staple food for many invertebrates.
A source of calcium supplements their diet. Cuttlefish powder can be offered sparingly in an easily accessible spot. Small portions of earthworm food are a supplement, not a substitute for leaves and wood. Check for leftovers the next day and remove any perishable items promptly.
Isopod food
Perfectly complementary Isopod food in a resealable zip bag!
Behavior and Offspring
The animals frequently feed on moss and patches of bark. Lichen-covered, undisturbed bark can supplement their diet. Repeatedly opening the enclosure and spraying the animals directly is not necessary for observation.
In our breeding program, the population grew slowly, and the number of young animals remained manageable. Plan for a gradual introduction period and do not remove any animals until the population is growing steadily.
Check the food and humidity levels regularly without rearranging the entire setup. If you find mold, first remove the affected food dish and check the amount of food and the ventilation. A complete bedding change is usually unnecessary for a group that is otherwise stable.
Discover More Isopods
Here you’ll find a selection from our store. Before purchasing, make sure the specific species’ needs are compatible with your terrarium.
Still unsure? Feel free to ask us your question in the comments section below the article.























