Fritz Expel-P 20 Count

Bought guppies from Petsmart and every single fish was sick with worms and other parasites. Unfortunately it made its way to my healthy fish. This stuff works gently over night and did not hurt my shrimp or mystery snail. Snail was uncomfortable so I would keep an eye out or just remove them overnight. Light sensitive but does not need to be blacked out. 24 hours later all stringy white poop and clamped fins are gone. They started eating as normal. Total fish saver. However, it only paralyzes worms so they can be pooped out by fish. You must remove all white poops they expel during water change because they are still alive.

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.

So far so good. I am preparing to perform the water change. I am reviewing early because the description states that it does not cloud the water and it most definitely does. Both my singular betta tank and my community tank were crystal clear and turned milky immediately after treatment. My daughters did the same.

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.

Works fast !! Turn off the lights while using. This product saved my fish from camallanua worms in just two treatments. It did make the water a bit cloudy. Its says it doesn't discolor the water but after a 20% water change it was back to clear. Fish are back to eating and gaining weight. Great product.

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.

I never encountered Camallanus worms with my fish before which I suspect arrived from some new fish I had adopted into my tank. I read the reviews on this product and followed the directions to a T. I had a few fish suffering some this issue and one of them looked like they weren't going to make it. I treated my tank with the directions and my fish are doing so well! I plan on doing another treatment next week as recommended. I recommend this product!

not happy with it killed all my crabs and cleaner shrimp but doses kill worms like it send . big lose of clan up craw .

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.

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.

Works very well for fish but be careful using it with shrimp! Easy instructions on the box, everything went well.

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!