Are Black Soldier Fly Larvae Good for Reptiles
Black soldier fly larvae have become a popular staple feeder, but exactly why? — and how do they stack up against more traditional options like crickets, woodies, superworms and mealworms?
This guide breaks down what makes BSFL a strong feeder choice, and where they fall short. For general care, see our black soldier fly larvae care guide.
Quick answer: Yes — BSFL are a great feeder for most reptiles, thanks to a naturally favourable calcium-to-phosphorus ratio and a soft, easy-to-digest exoskeleton. Their main drawbacks is that they're less active than crickets and woodies, which can matter for reptiles that hunt by movement, and have a short shelf life.
The Calcium Advantage
Most feeder insects carry more phosphorus than calcium, which is why calcium dusting is standard practice with crickets, woodies, mealworms, and superworms. BSFL are one of the few feeders where the natural balance is already good enough, which makes them a very healthy addition alongside your usual dusted feeders.
Easy to Digest
Compared to mealworms and superworms, BSFL have a noticeably softer exoskeleton with less chitin. That makes them easier to digest and lowers the risk of impaction.
Suitable for a Wide Range of Reptiles
Their soft body and manageable size means BSFL suit a broader range of ages and reptile sizes than some other larger feeders, like superworms. As a general rule, choose larvae no larger than the gap between your reptile's eyes. Bearded dragons, geckos, and many other insectivorous reptiles all do well with BSFL as part of a varied diet.
Where They Fall Short
BSFL are fairly sedentary compared to crickets or woodies, so reptiles that rely heavily on movement to trigger a feeding response can sometimes show less interest at first — offering them in a shallow dish or with feeding tongs usually solves this.
Adult larvae can also only last 1-2 weeks at room temp before darkening and pupating. This shorter shelf life is a slight disadvantage when compared to longer lasting feeders like woodies or superworms.
Getting Started
We at Reptifauna supply black soldier fly larvae across Australia (excl. WA & TAS). You can find more information below:
Browse the wider range in our black soldier fly larvae collection.
Final Thoughts
Black soldier fly larvae are a great feeder — naturally calcium-rich, easy to digest, and low-maintenance to keep on hand. The only real trade-offs are their lower activity level, and shorter shelf life, but the positives well outweigh the negatives.
For the wider picture on BSFL as a feeder, see our black soldier fly larvae care guide.