Bulk Spikes for Sale, 500 Count
This is a 500-count pack of spikes, the larvae of the blue bottle fly, about 1/4″ to 1/2″. The largest count gives you the lowest price per spike, so it suits high-volume keepers, dart frog groups, and anglers. Reptiles, dart frogs, and other insectivores take them, and they work as fishing bait too.
Feed as Larvae or Flies
Spikes give you two options. Feed the crawling larvae as they arrive, or let a batch pupate and emerge as blue bottle flies. The flies make a lively treat that chameleons and other hunters chase around the enclosure. With a larger count, you can split a batch between both uses.
Dust for Calcium
Like most feeders, spikes are low in calcium, so dust them with TC Calcium Ultra Fine before feeding. They are not the same as calcium-rich black soldier fly larvae, so offer them as variety rather than a staple.
Care
Refrigerate spikes as soon as they arrive, between 33 and 39°F, so they stay as larvae instead of turning into flies. This matters most with the larger count, since cold storage holds the whole batch for weeks. For all larvae and no pupae, order overnight shipping with a cold pack. Warm a portion when you want flies.
Best For
- Keepers feeding many small animals or dart frog groups.
- Breeders and high-volume feeding.
- Chameleons and hunters that chase flying prey.
- Anglers who want live bait in quantity.
Not Best For
- Use as a staple or a calcium source, since spikes need dusting.
- Keepers who cannot refrigerate the larger batch on arrival.
- A single small pet, where the 50-count or 100-count fits better.
Recommended Add-Ons
- TC Calcium Ultra Fine to dust the spikes before feeding.
- Spikes 200 Count for a mid-size amount.
- Spikes 100 Count for one or two pets.
- Fruit Flies as another small feeder for the same animals.
- Live Spikes to browse all counts.
Frequently Asked Questions
How many spikes is 500 count?
It is 500 blue bottle fly larvae, the largest pack and the best value per spike. It suits high-volume feeding.
Can I feed them as flies?
Yes. Let a batch warm up and pupate, and they emerge as blue bottle flies, a flying treat for chameleons and other hunters.
How do I keep them?
Refrigerate them on arrival, between 33 and 39°F, so they stay as larvae. Cold storage holds the larger batch for weeks. Warm a portion when you want flies.
Are spikes a calcium source?
No. They are low in calcium like most feeders, unlike black soldier fly larvae, so dust them before feeding.
Which count should I get?
Choose 500 for high-volume feeding, the 200-count for several animals, or the 100-count for one or two pets.
Learn More About Blue Bottle Flies
These sources cover the blue bottle fly and feeder supplementation.
- Blue Bottle Fly Overview. A reference on the blue bottle fly and its larvae.
- Calliphoridae (Blow Flies). A reference on the blow fly family and its life cycle from larva to fly.
- ScienceDirect: Gut Loading (veterinary overview). A reference on why feeder insects need supplementation, which supports dusting spikes.
