Species Overview
Few live foods have earned the reputation of Live Blackworms (Lumbriculus variegatus). For decades, hobbyists, professional breeders, and public aquariums have relied on Live Blackworms as one of the most effective ways to condition fish for breeding, encourage reluctant feeders, and provide a highly nutritious food that closely resembles what many freshwater species consume in nature.
Unlike prepared foods that simply drift through the water column, Live Blackworms remain active, triggering natural hunting and foraging instincts in fish, amphibians, and other aquatic animals. Their movement often encourages shy, newly imported, or selective feeders to begin eating, making Live Blackworms an invaluable tool in aquatic care.
Product Specifications
| Item | Details |
|---|---|
| Species | Lumbriculus variegatus |
| Form | Live worms |
| Size | 1.5–3 cm |
| Quantity per pack | 100 worms |
| Storage | Keep in cool, moist environment; avoid direct sunlight |
FAQ
How long do Live Blackworms typically stay active after purchase?
Live Blackworms remain active for several days when stored properly in a cool, moist environment. Activity may decrease over time, especially if exposed to extreme temperatures or dry conditions.
Are Live Blackworms safe for all types of aquarium fish?
Live Blackworms are generally safe for most freshwater fish and amphibians. However, some sensitive species may be affected by their movement or size. It is recommended to introduce them gradually and monitor fish behavior.
Can Live Blackworms be used in saltwater aquariums?
Please contact customer service




Alan Dowd –
My cichlids started eating regularly after I introduced Live Blackworms. They move naturally and seem to enjoy the activity. The worms stay alive for at least 4 days when kept in a damp container. Great for encouraging shy fish to feed.
Victoria Walsh –
Used these for a new betta that wouldn’t eat anything. After a few days, the fish started actively chasing the worms. The size is appropriate for small fish, and they don’t clump together like some other live foods.
Sam Pullman –
Excellent product. The worms are fresh, active, and easy to handle. I’ve used them in both community tanks and breeding setups. Fish show increased interest and appetite after feeding.