Superworm Care Guide Australia
Superworms are a larger and longer-lived alternative to mealworms, popular with keepers of bearded dragons, monitors, and other reptiles that need a bigger, easy feeder. They store differently to mealworms in one critical way, so it's worth knowing the basics before you bring some home.
This guide covers everything you need for day-to-day superworm care and feeding. For a wider look at all the feeder insects available in Australia, see our complete guide to feeder insects in Australia.
Quick takeaway: Superworms are the larvae of a darkling beetle (Zophobas morio) — a larger, tropical species of mealworms, and unlike mealworms, they must never be refrigerated. Keep them at room temperature and they'll stay usable as larvae for weeks to months.
What Are Superworms
Superworms are the larval stage of Zophobas morio, a darkling beetle species distinct from (and notably larger than) the one mealworms come from. Kept together in a group, superworms tend to stay in the larval stage far longer than mealworms do — group housing actually suppresses the trigger for pupation, which is part of why they make such a long-lasting feeder.
Housing and Substrate
A sturdy plastic tub with mesh or ventilated air holes works best. Line the base a few centimetres deep with wheat bran, oat bran, or pollard, and add an egg carton or two for extra surface area where the worms can tuck in and feel secure.
If you get housing right and keep them happy and healthy, superworms can live up to 3 months or more. Meaning they're well suited for you to save money and stock up on, rather then ordering every week.
Temperature — Why You Should Never Refrigerate Them
This is the single most important difference from mealworms: superworms must be kept at room temperature, ideally around 21–27°C. Below about 15°C they go dormant and can die, and the refrigerator trick that works for storing mealworms will kill a batch of superworms outright. Keep them somewhere stable and warm, out of direct sun and away from the fridge.
Feeding and Nutrition
Superworms carry more fat, calcium, and fibre than mealworms thanks to their heavier chitin content, but they still don't offer a balanced calcium-to-phosphorus ratio on their own — dust before every feed. Their tougher exoskeleton also lends itself to making them an adults-only feeder for most reptiles. For the full breakdown of who they suit and portion sizes, see are superworms good for bearded dragons and how many superworms to feed your reptile.
Common Mistakes to Avoid
- Refrigerating superworms like mealworms — this kills them
- Feeding them to small or juvenile reptiles that can't handle the size or harder-to-digest exo-skeleton
- Using as a staple feeder - Superworms are better suited to being a part of a varied diet, not a sole staple.
- Skipping calcium dusting
For the complete list with explanations, see common superworm feeding mistakes.
Getting Started With Superworms
We at Reptifauna ship superworms across Australia (excl. WA & TAS) every week. You can view our options here:
Browse the wider range in our mealworms & superworms collection, or compare superworms against other feeders in our guide to choosing the best feeder insects for Australian reptiles.
Final Thoughts
Superworms are a convenient, long-lasting feeder for adult reptiles that can handle their size — the one rule to never break is keeping them at room temperature, never in the fridge. Get that right, along with dusting and portioning, and they're a useful addition to your feeding rotation.
Browse the full complete guide to feeder insects in Australia, or see best feeder insects for Australian reptiles to compare your options.