Levamisole Powder – Internal Parasite Treatment for Ornamental Aquarium Fish

Levamisole Powder – Internal Parasite Treatment for Ornamental Aquarium Fish

Levamisole Powder is a treatment compound commonly used by experienced aquarists when managing internal parasite issues affecting ornamental aquarium fish, particularly camallanus worms and other nematode parasites.

In the aquarium hobby, levamisole-based treatments are often used when fish exhibit symptoms associated with internal worms. When used at appropriate levels for aquarium fish, levamisole may temporarily immobilize certain parasites, allowing them to be removed from the aquarium through proper maintenance practices such as gravel vacuuming.

Because of this, careful dosing and thorough tank maintenance are recommended during treatment. Some aquarists also report that fish may appear more active after treatment as overall fish health improves.

Common Aquarium Issues This Product Supports

• Camallanus worms
• Threadworms
• Other internal nematode parasites

Not Intended For

Levamisole-based treatments are not typically effective for:

• Tapeworms
• Flukes (flatworms)

Aquarium Compatibility

Safe for use with most aquarium plants and invertebrates when used as directed.

Treatment Plan

Dose 90 mg per 10 gallons of aquarium water (approximately ¼ teaspoon per 100 gallons).

After 24 hours, perform a 75–100% water change and conduct a deep gravel vacuum to remove expelled parasites.

Repeat the treatment once more after the water change.

A third treatment approximately 3 weeks later is often recommended to address newly hatched parasites and help break the parasite life cycle.

Keep aquarium lights off during treatment as levamisole is light sensitive.

Because some parasites may only be immobilized during treatment, thorough gravel cleaning is important to remove expelled parasites from the aquarium.

Important Use Information

All products in this section are intended for ornamental aquarium fish only and are not intended for human consumption or for fish used for food production.

By placing an order, you acknowledge and agree to our Ornamental Fish Medications Guidelines:

This product is dropshipped directly from our trusted supplier to ensure quality and proper handling. Availability may vary depending on supplier inventory.