

🐟 Clear waters, happy fish—treat parasites like a pro!
Hikari USA Inc. Prazipro is a 1 oz liquid parasite treatment designed for both saltwater and freshwater aquariums. It rapidly eliminates flatworms and other parasites within 24 hours without harming fish or shrimp. Easy to dose and trusted by thousands, it’s a top-ranked, highly rated solution to keep your aquatic ecosystem healthy and thriving.








| ASIN | B0006JLPBS |
| ASIN | B0006JLPBS |
| Best Sellers Rank | #17,333 in Pet Supplies ( See Top 100 in Pet Supplies ) #11 in Fish Medication & Health Supplies |
| Brand Name | Hikari |
| Customer Reviews | 4.4 4.4 out of 5 stars (457) |
| Date First Available | June 15, 2004 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 0.05 Pounds |
| Liquid Volume | 1 Fluid Ounces |
| Manufacturer | HSUSAI/Hikari Fish Food |
| Manufacturer | HSUSAI/Hikari Fish Food |
| Manufacturer Part Number | 042055732512 |
| Product Dimensions | 2.8 x 1.1 x 1 inches; 0.8 ounces |
| Target Species | Fish |
| UPC | 042055732512 |
| Unit Count | 4.0 Fluid Ounces |
M**L
I can’t rate this high enough!
This has saved fish in my saltwater tank from dying, and in my freshwater shrimp tank. In my saltwater tank, I thought I had a fungal infection, but turns out that wasn’t right. Within a week of dosing this, the pop eye and cloudy eye on my fish was totally clear. In my freshwater, shrimp tank, cherry shrimp and Chili Raspbora, I started to recognize that I wasn’t seeing baby shrimp anymore. Shortly thereafter, I recognized all the flat worms on the glass and in the sand. Literally within 24 hours, there is not a single flat worm, cruising my glass at feeding time and I can see them dead in the sand. I will still do the second dose in three days, to get the rest of them. What an amazing product
J**A
Very Effective
This works fast and doesn't hurt the fish. It can kill the snails so we put them in a container of water for 24 hours. We make sure to unplug the filtration system so the medicine isn't filtered out. It is so easy to use and the color fades as it works. The price is well worth the results.
J**N
One of the Best Parasite Treatment
What an amazing product. This Prazipro is extremely effective and worth the money. Saved many of my fish, and after a couple of hours, the water clarity and color is fine. Make sure you use the correct dose, wonderful product for parasite treatment
M**L
Reliable Product. 1 oz size will dose 20 gallons 2 times.
Good product, works as needed. Follow instructions- you'll probably have to look them up online to READ them, since the label is pretty small print. Product size: 1 oz is sufficient to dose 20 gallons 2x.
C**D
Will update with results
The bottle comes sealed, which is awesome. The bottle is very small, which is fine, just don’t be surprised. Followed directions and casted my first dose right away. I’m trying to get rid of these planarian before they harm my snails. So I will update with the results.
N**E
Works
Works amazing, my fish had parasite and one was pretty much dying. This saved my Royal gramma. Used it with metroplex!
M**A
False advertising for size of product
False advertising. The image shows a 4fl oz bottle as of 3/11/26 It's only 1 oz. Not a great price size considered, rip off. It's a good brand I've tried otherwise. Works well for treating gill flukes.
M**L
My go to parasite treatment for quarantine
My go to for new fish. I feel this is a very safe medication to give during quarantine and works quickly. I like to dose half the concentration of aquarium salt in my 10 gallon quarantine tank to aid in stress relief and healing and the prazipro (regular dosage for 10 gallons) So far it’s been the best cocktail.
M**E
I didn't see any improvement in my sick discus but it extended the discus life in short term.
Trustpilot
2 weeks ago
3 weeks ago