Skip to product information
1 of 3

Aqion

Praziquantel – Aqion Liquid Concentrate 16 oz for Aquarium & Pond Fish

Praziquantel – Aqion Liquid Concentrate 16 oz for Aquarium & Pond Fish

SKU:RI-G08O-8QFK

Regular price $49.95 USD
Regular price Sale price $49.95 USD
Shipping calculated at checkout.
Active Compound: Praziquantel Liquid Concentrate (16 fl oz / 473 mL bottle)
Yield / Package Capacity: Up to 1,900 US gallons per 16 oz bottle (per label directions)
Quantity

Aqion Praziquantel Liquid Concentrate (16 fl oz / 473 mL) is a pre-solubilized liquid praziquantel concentrate formulated for convenient dispersion in freshwater and marine ornamental fish aquariums and garden ponds without pre-dissolving dry powder.

Product Specifications

  • Active Ingredient: Praziquantel in a water-miscible liquid carrier
  • Net Contents: 16 fl oz (473 mL) bottle
  • Coverage Volume: 16 fl oz doses up to 2,500 US gallons of water (approximately 1.9 mL per 10 US gallons; see bottle label directions)
  • SKU / UPC: RI-G08O-8QFK / Z3-D1NI-T4QP · UPC 860001263756

Directions for Water Application

  • Determine total aquarium or pond water volume before measuring.
  • Remove activated carbon and turn off UV sterilizers and protein skimmers during the bath period; maintain full biological filtration and vigorous aeration.
  • Shake bottle well before measuring and pour the measured volume slowly into an area of strong water flow. Follow all printed bottle label instructions for bath duration and water changes.

Storage & Warnings

  • Intended Use: For use in ornamental aquarium and pond fish only; see label directions. Not for human use and not for use in fish or aquatic species intended for food.
  • Storage: Keep bottle tightly capped in a cool, dark place below 25°C (77°F). Keep out of reach of children and pets.

Verified Customer Ratings & Reviews (4.4 ★ out of 5 · 76 Verified Ratings)

★★★★★ Great for Aquariums — Robert (2025-12-21, Verified Purchase)

Mixes surprisingly well for a typically hydrophobic medicine. This is a great deal on Praziquantel if you're looking for it for your large aquarium, as the bulk pricing saves you a ton of money.

★★★★★ No mixing. Just pour. — Jimm K. (2024-08-08, Verified Purchase)

Very easy to use. Took care of those darn Flukes in our pond.

★★★★☆ Works For Me — Chicago007 (2024-07-03, Verified Purchase)

I was not aware of this product until recently. I have some Koi that were not eating and swimming erractically. I tried some other meds but after 2 weeks, they were still the same. I decided to give this a try even though it is very expensive at $49 for 16 oz bottle. Mixed recommended amount with some water and distributed it in the tank. Also removed carbon in the filter system leaving only the pads. Your water will get cloudy without the carbon but that is what you have to do. My Koi fish started eating after third day of treatment and they also starting swimming a little more normal. After 7 days, I did a partial water change and gave the tank a second treatment. It has been 3 weeks and the fish seem to be back to normal. It should be noted that I also added aquqrium salt to the water so that may have had a beneficial effect. In any case, I would say this med did its job. Use it if you have expensive fish.

★★★★★ And The Koi Seem Happier — Karen Hartman (2023-11-25, Verified Purchase)

The skin parasites cleared right up. My koi seem as lively as ever. I plan to treat my pond with this stuff 4 times per year.

★★★★★ Fast cure! — NK in NC (2022-03-10, Verified Purchase)

Community tank had wasting which I identified as possible parasites. Other meds didn't make a difference. Treated with this and three days later I could visibly see it was working. Way more cost efficient as well vs the 1 pack per 10 gallon meds of other brands when you're treating 75+ gallon tanks.

Species & Regulatory Compliance

For ornamental aquarium and pond finfish only. Not for human use or fish intended for human consumption. Keep out of reach of children.

Shipping & 15-Day Return Policy

Shipping: Standard, expedited, and international shipping rates are calculated at checkout (typical handling time is 1–2 business days from Dallas, TX).

Returns: Returns of unopened products in original condition are available within 15 days of receipt.

View full details
  • 5 stars: 4 (80%)
  • 4 stars: 1 (20%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
R
Robert
Great for Aquariums

Mixes surprisingly well for a typically hydrophobic medicine. This is a great deal on Praziquantel if you're looking for it for your large aquarium, as the bulk pricing saves you a ton of money.

J
Jimm K.
No mixing. Just pour.

Very easy to use. Took care of those darn Flukes in our pond.

C
Chicago007
Works For Me

I was not aware of this product until recently. I have some Koi that were not eating and swimming erractically. I tried some other meds but after 2 weeks, they were still the same. I decided to give this a try even though it is very expensive at $49 for 16 oz bottle. Mixed recommended amount with some water and distributed it in the tank. Also removed carbon in the filter system leaving only the pads. Your water will get cloudy without the carbon but that is what you have to do. My Koi fish started eating after third day of treatment and they also starting swimming a little more normal. After 7 days, I did a partial water change and gave the tank a second treatment. It has been 3 weeks and the fish seem to be back to normal. It should be noted that I also added aquqrium salt to the water so that may have had a beneficial effect. In any case, I would say this med did its job. Use it if you have expensive fish.

K
Karen Hartman
And The Koi Seem Happier

The skin parasites cleared right up. My koi seem as lively as ever. I plan to treat my pond with this stuff 4 times per year.

N
NK in NC
Fast cure!

Community tank had wasting which I identified as possible parasites. Other meds didn't make a difference. Treated with this and three days later I could visibly see it was working. Way more cost efficient as well vs the 1 pack per 10 gallon meds of other brands when you're treating 75+ gallon tanks.