Fritz Expel-P

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  • Treatment for parasites
  • Effective against planaria
  • Safe for plants and invertebrates

Expel-P from Fritz Aquatics is used as a deworming medication and is intended to treat parasites such as Planaria, Nematodes (like Camallanus Red Worms), Roundworms, Nodular Worms and Hookworms. Symptoms in new and sick fish can include worms visibly protruding from the anus of the fish, wasting, abdominal bloating, disinterest in food, or rapid breathing or gasping. The active ingredient used in Expel P is Levamisole HCl. Expel-P will not harm biological filtration, plants, invertebrates or fish which are not infected. 

We recommend using an air stone when treating with this medication. 

Expel-P does not treat Cestodes (tapeworms) or Trematodes (flukes). For these parasites, try Fritz ParaCleanse.

Customer Reviews

Based on 72 reviews
Gail (Freeland, WA, US)
Saved My Tank

I used Expel-P on my 75 gallon tank after a number of undetermined deaths of fish and snails. I have used it twice, as directed, and in darkness, also as directed, and my tank seems to have settled down. All the fish are happy, spawning and active. I'm dosing at least once more to be sure the problem is truly gone, even though 2 doses are recommended.
Very happy with the results and will use this again if need be.

A.R. (Temecula, CA, US)
Camallanus worms

Worked great to deworm a honey gourami! It says to add to water, but I also mixed it into some food and fed that to the gourami which worked within 24 hrs.

Michael T.

Fritz Expel-P

Kimberly B. (Norfolk, VA, US)
Fritz Expel-P

My angel had Camallanus worms and after using Expel-P I had seen immediate results with my fish. It takes several uses to hopefully kill them off completely.

Erica T. (Muscle Shoals, AL, US)
So far so good

I'm on the second dose and so far the fish have reacted well. The water didn't cloud up, either.