Miyako Isopods / Japanese Red Edge (Cubaris sp.)

Thailand gets most of the attention for red-edged isopods, but this one is traded under the name of a Japanese island, and it holds its own. The Miyako is a locality line of Cubaris sp. traded under the name of Miyako Island, in the southern reaches of Japan's Okinawa Prefecture, and often labelled Cubaris iriomotensis, although that name was based on animals from Iriomote, further south-west in the same island chain, and has been treated as a synonym of the widespread Cubaris murina since 2012. You will see it sold under a handful of names, which trips up a lot of buyers: Miyako Isopods on most lists, Japanese Red Edge on others, and sometimes Iriomotensis 'Miyako'. They all point to the same animal. "Miyako" is simply the island it is traded under, and that locality tag is the most reliable way to know you are looking at the right isopod whatever heading a shop files it under.

Keepers put adults at about 13mm, and no one has published a measurement for the Miyako line itself; the nearest published figure is the 11mm recorded for Cubaris murina.

The look is what draws people in first. The body runs dark, near enough to black, and it is skirted along every segment with a vivid band of red shading to orange, right down to the antennae. It is a high-contrast animal that catches the light beautifully, and it closely resembles the Thai Red Edge; the trade sells the two as separate animals from different countries, though nobody has compared them and one hobby database files them under the same name. Think of the Miyako as the Japanese answer to that familiar orange-skirted morph, the same striking edge set over a darker, moodier base.

What really sets it apart in the enclosure is temperament. Most premium Cubaris are shy things that snap into a defensive ball at the faintest disturbance and vanish into the substrate, which makes for a handsome but rarely seen pet. The Miyako is comparatively fearless. Lift the lid or move a piece of cork and it tends to carry on in the open rather than rolling up on the spot, so you actually get to watch it going about its business. For a display setup, where the whole point is seeing the colour, that boldness counts for a great deal.

Care follows the classic Cubaris template, and the Miyako is one of the more accessible members of the group to take it on. Keep it warm and stable, humid throughout with a damp end and a gentle gradient across to a slightly drier side. Give it a deep, living substrate to burrow into, a blend of flake soil, rotted hardwood and topsoil rather than a plain coco-coir base, which offers the premium Cubaris little to work with. Add gentle cross-ventilation to keep the air fresh without drying things out, keep calcium available at all times as crushed limestone or cuttlebone, and lay down plenty of leaf litter with cork bark or limestone chunks for cover.

Those hardier genetics beneath the premium looks are exactly why the Miyako earns its keep as a stepping stone. If you have a beginner species or two behind you and want to move into Cubaris without wrestling the most demanding Thai types straight away, this is a sensible place to start. A forgiving gateway like the Little Sea sits a rung below it, while the prized Rubber Ducky and boldly marked Panda King give you somewhere to head next. It breeds steadily once settled rather than in sudden booms, so a starter group builds into a colony at a manageable pace. Run a thriving springtail culture alongside it to keep mould in check in the humid conditions these need. For the wider picture, our guide to the types of Cubaris isopods and the full Cubaris collection are both worth a browse.

Every Miyako we send out is captive-bred here in the UK. Your order travels in a ventilated tub of damp sphagnum moss, packed inside a double-walled box, and goes out Monday to Thursday by tracked next-day Royal Mail to land with you by 1pm. Each parcel is covered by our live-arrival guarantee, and we always tuck in a 20% overcount as a thank you.