Regular price
Sale price
Regular price
Sold out
Unit price

Maximum quantity in stock reached.

Maximum quantity in stock reached.

Save $4.99.

  • Treats Anchor Worm
  • Treats Fish Lice
  • Plant and Invertebrate Safe

For the control of disease conditions of fishes caused by fish lice and anchor worm. Start with new water or a large water change (minimum 25% - more is better)

Next remove carbon filtration, uv sterilization and stop form-fractionation ("protein skimming") to prevent the removal of the CyroPro active ingredient. Do not stop other filtration. Shake CyroPro vigorously and add at the rate of one (1) teaspoonful ~ 5 mL per 50 gallons. Treats 5000 gallons total.

Repeat the treatment regimen every seven (7) days for a minimum of twenty-one (21) uninterrupted days or a complete restart of the treatment regiment is required for optimum results. A water change is required before each retreatment or addition of CyroPro to refresh dissolved oxygen levels, remove pollutants and nutrients for disease-causing organisms and to reduce the population of water-borne pathogens.

Commonly used to treat:

  • Treats disease conditions caused by Anchor Worm (Lernaea spp)
  • Treats disease conditions caused by Fish Lice (Argulus spp; family Argulidae)

Customer Reviews

Based on 6 reviews
Desiray C.

I have not used it yet to give a review.

Marie E. (Pine Bluff, AR, US)
Order from co-op

Plants are awesome!! Unable to share pics. Very prompt delivery. I did lose 1 plant that melted and did not regrow however I believe it was because of other reasons as I had an issue with my water perimeters in that tank and should have waited to place the plant a few more days.

ADK G. (Piercefield, NY, US)

Great Product. Highly recommend.
I believe this medicine saved my 7 goldfish's lives. I treated both tanks. It first seemed like there was a vertebra looking thing coming out of my fishes gill,as she was gasping for air on the bottom of the tank. The first 2 weeks I thought she was going through a rough time. Almost approaching the third week and she is swimming again. After the first week, I rinsed the media as usual. looked like there were hundreds of dead creatures. So gross! Definitely hook worms but also a weird looking crustaceans tiny things too. After the 2nd week, there were smaller dead creatures. Wish I had a microscope, but YUK!. Only one fish had a problem. So Glad -I treated all my goldies. Treat for the 21 days as directed.

Joseph N. (Fairfax, VA, US)
Cured Anchor Worm

This product is very safe and effective. In the beginning I had to use a tweeze to pull out anchor worm, and treat with this med for 21 days.

Sandra N. (Ukiah, CA, US)
Fantastic People!🤗

I am very pleased with Aquarium Co -Op and feel very fortunate to have found them. I specifically love Cory and all his minions.😘 They have excelled in all departments over the years. Customer service has helped me a lot. Specifically with saving Zack and his stalker girlfriend. She is a huge Rainbow shark, Zack is a big Fancy goldfish. I gave up trying to understand it.
This medication was recommended and it worked. Nothing else worked.
I think your delivery is top notch. Quick and efficiently packaged with care.
Cory and his minions will take this company way into the future. Thanks so much for everything and for the videos too. A tip: I would love to see some videos of the employees and their fish stories.