Cuttlefish Bone | Natural Calcium Supplement for Invertebrates

Cuttlefish Bone | Natural Calcium Supplement for Invertebrates

A rich, natural source of calcium essential for the health of your invertebrates. Our quality Cuttlefish Bone provides the slow-release calcium and minerals that isopods, millipedes, snails, and other invertebrates need to build strong exoskeletons, moult successfully, and maintain healthy colony growth.

Key Benefits

• Essential Calcium Source: Provides a constant, accessible supply of calcium for isopods and millipedes to graze on — particularly important during and after moulting.
• Natural & Safe: 100% natural cuttlefish bone with no additives or preservatives. Safe for all invertebrates.
• Long-Lasting: Invertebrates graze on cuttlefish bone slowly over time, making it a cost-effective and long-lasting supplement.
• Moulting Support: Regular access to calcium significantly reduces the risk of failed moults across all isopod and millipede species.

Product Details

❓ Frequently Asked Questions

How do I use cuttlefish bone in my enclosure?
Simply place a piece of cuttlefish bone directly on the substrate or prop it against the enclosure wall. Your invertebrates will graze on it as needed. For smaller enclosures, break the bone into smaller pieces.

How often should I replace it?
Replace when the bone has been significantly consumed or begins to break down. In an active colony, this may be every 2–4 weeks. In smaller setups, it can last considerably longer.

Is cuttlefish bone safe for all isopod species?
Yes — cuttlefish bone is safe for all isopod species including Armadillidium, Porcellio, Cubaris, and Trichorhina. It is also suitable for millipedes, snails, and land hermit crabs.

Can I use it in a humid enclosure?
Yes — cuttlefish bone holds up well in humid conditions. It will soften slightly over time, which actually makes it easier for smaller invertebrates to graze on.

Do I need to use cuttlefish bone if I already use oyster shell?
Both provide calcium, but they complement each other well. Oyster shell is best mixed into the substrate as a slow-release buffer, while cuttlefish bone provides a direct, accessible grazing source on the surface. Using both gives your colony the best of both worlds.