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Fritz Expel-P 20 Count

4.4 4.4 out of 5 stars 571 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
  • Use for Nematodes, Roundworms, Nodular Worms, and Hookworms
  • Can be Used As a Coral Dip
  • Safe for Plants and Invertebrates
  • Easy to Measure Packet Dosing System
  • Safe for Fresh and Saltwater Systems

Product description

Water Treatment for Fish Tank

Product details

  • Product Dimensions ‏ : ‎ 13.97 x 3.81 x 10.16 cm; 9 g
  • Date First Available ‏ : ‎ Feb. 7 2021
  • Manufacturer ‏ : ‎ Fritz Aquatics
  • ASIN ‏ : ‎ B08SBLJ121
  • Item model number ‏ : ‎ 75090001
  • Customer Reviews:
    4.4 4.4 out of 5 stars 571 ratings

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Fritz Expel-P 20 Count

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Customer reviews

4.4 out of 5 stars
4.4 out of 5
571 global ratings
Came on time to get the worms out.
5 Stars
Came on time to get the worms out.
It was easy to use and came on time. All of my fish are ok now.
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Top reviews from Canada

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RJ Vanderkooi
5.0 out of 5 stars Works great. Make sure you follow the directions.
Reviewed in Canada on January 25, 2024
Verified Purchase
I had some new fish added to my display tank and used this medication as a precaution. It worked very well, I follow the directions on the package, make sure windows are closed and plant lights are turned off during treatment period.
I have freshwater shrimp in this tank and it did not harm them.
Important note:this medication is hard on fish, and they may seem a bit “weaker” by the end of treatment. Once you do a follow up water change though in my experience my fish came back much stronger than prior to the meds. No sunken bellies, great colours and feeding response.
Also, this does not replace good tank maintenance. Keep your tank as clean as possible, that alone can prevent 99% of diseases from occurring.
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Robert A.
5.0 out of 5 stars Cured "skinny loach disease" in one dose
Reviewed in Canada on March 6, 2023
Verified Purchase
This product exceeded my expectations. Effective against Nematodes, Roundworms, Nodular Worms, and Hookworms.

Had a clown loach which was BONE thin, and couldn't gain weight no matter how much food it ate, and it ate a lot.
6 weeks after a single treatment the fish now looks normal. Had the fish for almost 2 years before treatment, didn't think this would be so effective buy it was.
Difficult to find and expensive.
One person found this helpful
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Marcel
5.0 out of 5 stars Worked well,
Reviewed in Canada on July 15, 2023
Verified Purchase
Bought to try in my aquarium as I had 1 fish who had worms in his bum. Treated the tank as directed, and within a coup days, I couldn’t see the worms anymore, did the water change as directed, and then treated once more as instructed on the box. Has been nearly 2 months and all are healthy. Note, I did loose 2 out of 20 Cherry barbs which developed dropsy, not sure if maybe the had worms and couldn’t pass them, but still over all was very satisfying with this product. The fish who had visible worms was a one of our 2 Bolivian rams. He become very distant from the rest of the tank and was secluded to one corner. After the worms were gone, he’s now very active and healthy. He didn’t grow much after due to the timing in which he had the worms he lost a lot of his growing time.
One person found this helpful
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Justin Zinyk
4.0 out of 5 stars Exactly as described
Reviewed in Canada on October 8, 2022
Verified Purchase
The only complaint is slower shipping then I was hoping. Lost the fish I was hoping to treat waiting for these meds :( it's more Canada's fault then anyone else though.
Will purchase in future!
4 people found this helpful
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Xeno
5.0 out of 5 stars THANK GOODNESS !
Reviewed in Canada on September 1, 2023
Verified Purchase
I quarantined new fish for 6 weeks, all was well, I then added them to my 125 gallon. After two months I noticed the newest additions only then were showing visible camallanus worms 😭 I went through 4 months with every vet prescribed dewormer…. Pyrantel, praziquantel, fenbendazole. And NOTHING got rid of the camallanus worms. I asked for levamisole, but they could not get it for me.
I thought going through the vet would be sure fire and quicker. Was I wrong. I lost three Bolivian and two German rams in the process.
So as a last ditch effort, I ordered this as my vet couldn’t get levamisole….. when I tell you within one week of feeding EXPEL P soaked food, all adult worms were expelled from my fish 😭 now it’s going to be a long haul in a 125 gallon heavily planted aquarium ensuring eggs and larvae stages don’t take hold again. But I am still feeding the expel p soaked food once a week and doing water change 24 hr after. Probably for 3/4 months just to be safe. But thank goodness for this medication… thank you Fritz.
One person found this helpful
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NibbleFish
5.0 out of 5 stars Good product, good price
Reviewed in Canada on January 5, 2024
Verified Purchase
I keep levamisole in my aquarium pharmacy and this is what I needed. Comes in dosed packets for easy administration.
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Mahieux Nicolas
1.0 out of 5 stars A provoqué un pic de nitrites
Reviewed in Canada on March 22, 2024
Verified Purchase
J’ai utilisé ce produit l’an passé sans problème.
Cette fois ci, la poudre semblait plus granuleuse, et en quelques heures j’ai eu un gros pic de nitrites.
2 poissons sont morts, je doute que mes crevettes survivent.
Le produit n’est pas périmé.

A fuir!
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farid mokhannaki
5.0 out of 5 stars Powerful and fast but a little bit expensive
Reviewed in Canada on August 13, 2022
Verified Purchase
I used this product few days ago and so far I am happy with it. My fish had red worms coming out of their anus. I used this product and after four hours I saw the worms are falling dead. I did expect it to be so fast and strong. I also used it for my two other shrimp tank too just to make sure they are not infected.
4 people found this helpful
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Top reviews from other countries

Jordan
5.0 out of 5 stars Worked great, did not harm shrimp or snails
Reviewed in the United States on October 21, 2023
Verified Purchase
Ordered this as research showed it is one of the only parasitic medications that does not harm inverts when used as directed.

Purchased some endlers that apparently had camanellus worms (red worms) that snuck past quarantine and were introduced to a community tank with scaled and scaleless fish, a shrimp colony and mystery snails. Soon as the parasites were noticed, I followed the directions on the package with the secondary dose and did a full tank black out during treatment, except during feeding time as the instructions mention this med is light sensitive. Was also dosing Artemiss and Herbtana at the same time to cover my bases just in case something else snuck through.

All residents survived treatment and are thriving. No damage to inverts or scaleless fish, even the pygmy cories who tend to be a little delicate.

10 out of 10, will be ordering again to have on hand.
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Jordan
5.0 out of 5 stars Worked great, did not harm shrimp or snails
Reviewed in the United States on October 21, 2023
Ordered this as research showed it is one of the only parasitic medications that does not harm inverts when used as directed.

Purchased some endlers that apparently had camanellus worms (red worms) that snuck past quarantine and were introduced to a community tank with scaled and scaleless fish, a shrimp colony and mystery snails. Soon as the parasites were noticed, I followed the directions on the package with the secondary dose and did a full tank black out during treatment, except during feeding time as the instructions mention this med is light sensitive. Was also dosing Artemiss and Herbtana at the same time to cover my bases just in case something else snuck through.

All residents survived treatment and are thriving. No damage to inverts or scaleless fish, even the pygmy cories who tend to be a little delicate.

10 out of 10, will be ordering again to have on hand.
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12 people found this helpful
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jamie
2.0 out of 5 stars it can kill your marine crabs and shrimps
Reviewed in the United Kingdom on July 22, 2023
Verified Purchase
not happy with it killed all my crabs and cleaner shrimp but doses kill worms like it send . big lose of clan up craw .
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Ashley
5.0 out of 5 stars Great product!
Reviewed in the United States on June 14, 2022
Verified Purchase
I am a newish aquarist so sometimes I have no clue how to help my fish. Thankfully I'm apart of a fantastic fb group that helped a ton. With tons of searching to be sure it's safe for my fish. I have a nerite snale and from all my searching, most parasite treatments will slowly kill your snail. So far nerites are the only ones that seem to be sensitive to other treatments. So I went ahead and treated the tank with my nail in there. She did not handle it well and I found her closed up on her back. I removed her for the duration of the 24 hours did the water change and decided to leave her out. My fish were treated for those little red worms. My platty had them hanging out her back end and this cleared her up in 24 hours. But egg life cycle begins soon after even with 1 treatment. So I waited a week and followed up with a 2nd dose of it. 2 weeks now post treatment I have placed my snail back in the tank and she isndoing well. Fish all are well. I will say though my shrimp died :( but I'm not sure if it was due to the treatment or fault of my own. I felt like I should have removed them and placed them in my small tank. But it's all good I want to get a healthy live base going for them before I decide to introduce them again.

Oh and my tank is 10 gallons so it was 1 packet. I do not know the measurements for a smaller tank because I didn't need to treat my 2.6 gal tank.
8 people found this helpful
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John A Manrow
5.0 out of 5 stars Fritz Expel-P
Reviewed in the United States on January 13, 2024
Verified Purchase
Product works as described. Very good for quarantine tanks treating new fish. I highly recommend using a product like this during the quarantine for treating internal parasites and worms.
One person found this helpful
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Anon. in North Carolina
4.0 out of 5 stars Helping Guppies, but Slower Than the Box Says
Reviewed in the United States on November 7, 2022
Verified Purchase
Short Version: It's helping, but we had to soak our guppies for 4-5 days at 1.5x the recommended dose before seeing any worms expelled. It doesn't kill worms, it just paralyzes them, and it's hard to vacuum them all up in a thickly planted tank with a lot of substrate, so I feel like we're going to be treating before every water change for some time before we are successful. However, it is very safe. We haven't lost any guppies, snails, or plants since starting treatment. It's a wonderful value for the money and I'm hopeful we'll eventually get all the worms with repeat treatments. I don't know that any other meds would be easier in this situation and I'm happy with results so far. I know guppies are small fish that have trouble expelling these worms, and we had a high worm load, so maybe the exact box instructions do work for larger fish.

Long Version: About half of our guppies had been wasting and lethargic for weeks, but we couldn't see any clues as to what was wrong. Erythromycin and Fritz ParaCleanse didn't seem to help, and we lost three guppies in 48 hours. Upon inspection, we finally saw camallanus worms sticking out of three of our remaining guppies.
We dosed with Fritz Expel-P per the box instructions, and dutifully vacuumed the substrate the next day, but absolutely nothing happened. The worms were still visible and still red, which I believe indicates they are still sucking blood from the fish. I emailed Fritz and they got back to me very quickly, saying (slightly paraphrased) "Expel-P won't kill any worms. The treatment only paralyzes worms to allow the fish to remove them from the GI tract more easily. Repeat doses are often necessary for more severe infections. It is is safe to use more often than the box says. The treatment should be repeated an additional time one week after the last treatment you do, to help take care of any newly hatched eggs as these are not impacted by the treatment at all."
So I went ahead and dosed the tank again. The instructions from Fritz didn't totally explain whether we needed to do water changes between doses, so the next day, we did a 50% water change, and then added yet another full dose. The powder floating down into the tank was a direct hit on a couple of adult ramshorn snails, and it paralyzed them! They actively tried to crawl away from the powder, but you could see their entire bodies shut down. You haven't seen sad until you've seen snails try to crawl away from a paralytic. :) So we moved the snails elsewhere in the tank, hoping they'd recover, and I'm happy to report they all made a full recovery within a few hours. Our elderly mystery snail and bladder snails didn't seem affected at all, nor did the other ramshorns who didn't receive a direct hit. Anyway, we figured that's about the maximum dose our snails could handle, so after that, we just left the tank alone for 4-5 days. The worms sticking out of the guppies slowly turned white, meaning they weren't sucking blood, and then got expelled. Finally yesterday, we saw the biggest guppy expel his final worm, which was freaking huge and I can't believe the guppy is still alive, but he seems happier now. So yesterday we did a gravel vacuum and water change and we're going to give them a little while to recover. We do still see at least one living worm, bright red, sticking from the smallest guppy. I don't know if he's just too small to expel the worm. But we are going to continue soaking them in this med before each water change until all the worms are gone, or the guppies can't handle it anymore. Hopefully this will work out. :) I'm grateful to Fritz for their help with these insidious vampire worms.
One other interesting thing to note is that after the first dose, we saw a few planaria crawling around our tank! We didn't even know we had those. This medicine didn't kill them but it seemed to agitate them into moving around.
16 people found this helpful
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