Cylisticus Convexus originates from Europe but now can be found on nearly every major continent with human habitation. They're a very adaptable species able to thrive in a multitude of climates ranging from semi arid to semi tropical. They're sometimes referred to as the "Curly Isopod" or "Teardrop Isopod" due to the fact when they roll into the classic defensive ball, it's only does so partially creating more of an oval shape than a sphere like many other isopod species. This particular type dubbed the "Ukraine Pied", originates from individuals collected in Ukraine showing the black and white dalmatian pattern. These original specimens were then further refined with selective breeding as to have a visually appealing amount of contrast.
This isopod is on par with the well known powder blue or powder orange in terms of overall general care. They are a very easy species to keep and can become quite prolific once well established. They tend to burrow into the substrate to some degree so some additional depth is of benefit. They are nocturnal and will quickly scurry to hide or burrow if exposed to bright lighting. But they are truly enjoyable to observe at night as they will come out in force with no reservations moving all about their enclosure foraging and searching for food.
A 6 quart gasket sealed storage bin or small glass aquarium is sufficient for a small starter culture. Standard or bioactive enclosures can be enhanced with natural botanical items to simulate the isopods habitat in the wild. This helps them feel secure which in turn promotes their natural processes like eating and breeding. Average room temperature in the low to mid 70sF will suit them just fine. Around one half to one third of the enclosure should have damp (not wet) sphagnum moss with the remainder being a bit on the dry side. This species will do fine in almost any type of environmental set up so long as it isn't completely over saturated or too arid with little to no moisture. We find an average moisture gradient works well with this species. A few pieces of cork bark strategically placed over some of the moist side will help retain the humidity levels and reduce the frequency of watering needed to maintain a proper moisture gradient.
Isopods are detritivores. Their primary diet in nature is leaf litter and decayed wood. Both of these should always be available in abundance. They will also happily consume any other decomposing organic plant or animal matter they come across. As such it is vital to supplement your isopods with other food sources on a semi regular basis. They enjoy food options like squash, radishes, carrots and other veggies along with commercial isopod powdered food like Repashy. Ukraine Pied isopods are fond of protein in their diets which can be things like freeze dried minnows, shrimp, fish pellets, dried insects and other protein based food sources. They do have an impressive feeding response when offered such items. Almost like a swarm of piranhas, they will cluster all over the food source and devour it quickly. But this is mostly only at night or in low light settings. Be sure to feed these on the drier side as they can spoil quickly in humid environments and attract unwanted pests
Cylisticus Convexus Ukraine Pied is a great choice for clean up crew in a wide variety of environmental enclosure types. They are very good and quickly breaking down any type of decaying plant or organic materials. They're also a great first isopod if you're new to the hobby. Just know they aren't the best display type unless you are a night person as well. They won't be seen much during the daylight hours. So long as you ensure they don't dry out and offer them a reasonable amount of supplemental food items, they will multiply and flourish without any needed extended efforts on your behalf.
Quick Facts
- Origin: Ukraine
- Taxonomy: Cylisticidae > Cylisticus > Cylisticus Convexus
- Average Size: 0.50" inch to 0.60" inch
- Activity level: Primarily nocturnal
- Difficulty: Easy