Collection: BSFL for Tarantulas
Black Soldier Fly Larvae for Tarantulas — Natural Calcium Without Dusting
Calcium is one of the most critical nutrients for captive tarantulas, and black soldier fly larvae (BSFL) deliver more of it than any other feeder insect — approximately 9,340 mg/kg with a calcium-to-phosphorus ratio of 6.92:1. This makes BSFL the only feeder insect that does not require calcium dusting, simplifying your supplementation routine while providing superior calcium delivery.
At All Angles Creatures, we ship fresh, healthy BSFL from our Florida facility with a no-questions live arrival guarantee on every order. Whether you are preventing metabolic bone disease in a growing juvenile or supporting calcium maintenance in an adult, BSFL are one of the most important feeders you can add to your tarantulas's rotation.
Why BSFL for Tarantulas?
Most feeder insects contain more phosphorus than calcium — meaning they actively deplete your animal's calcium stores with every feeding unless you compensate with powder supplementation. BSFL reverse this equation entirely. Their 6.92:1 calcium-to-phosphorus ratio means every BSFL feeding builds calcium reserves rather than draining them.
Tarantula keepers seeking to diversify beyond discoid roaches and crickets can add BSFL to the rotation for nutritional variety. BSFL are soft-bodied — important for tarantulas that inject digestive enzymes into their prey, as softer prey requires less energy to externally digest. Most importantly, BSFL cannot bite — making them safe to leave in the enclosure during premolt when a tarantula is vulnerable and even a cricket bite could be fatal. The calcium content, while less critical for invertebrates than reptiles, still contributes to overall nutritional completeness.
| Detail | Recommendation |
|---|---|
| Quantity per feeding | 1-3 |
| Frequency | 1 time per week |
| Calcium dusting | Not needed (6.92:1 Ca:P ratio) |
| Storage | Refrigerator at 50-55°F, lasts 2-3 weeks |
BSFL in the Complete Feeding Rotation
BSFL work best as a calcium supplement alongside feeders that cover other nutritional needs:
- Daily protein: Discoid roaches — dust with calcium + D3
- 1-3x/week calcium: BSFL — no dusting needed
- 2-3x/week low-fat: Silkworms (1% fat, serrapeptase)
- 1-2x/week hydration: Hornworms (85% moisture)
Feeding Tips
Some tarantulas initially ignore BSFL because they are less active than roaches or crickets. Try offering in a small dish where concentrated wriggling is more visible, wiggling a single BSFL with tongs near the animal's face, or mixing BSFL with more active feeders in the same dish. Most animals accept them within 1-3 offerings.
Easy Storage
BSFL are the simplest feeder to store at home. Place the container in your refrigerator at 50-55°F — no feeding, no watering, no bin maintenance needed. They survive 2-3 weeks in this dormant state. When ready to feed, warm to room temperature for 10-15 minutes before offering.
Shipped from Florida with Live Arrival Guarantee
Every order ships from our climate-controlled Florida facility in insulated packaging. Our no-questions live arrival guarantee covers every shipment — if any BSFL arrive dead, we replace or refund immediately.
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— Matt, Founder, All Angles Creatures
