Hi everyone,
Just thought I'd share my 1st experience with Praziquantel.
2 of my discus had gill flukes i believe (they were breathing with one gill only) so I decided to run a treatment in my community tank. I have 55 gallon planted tank with 7 2.5 - 3 inch discus 3 BN high fin plecos, 4 Cory's sp.jully, 4 Otto's 2 Neritina Natalensis /Zebra Snail/ and god knows how many brown snails.
I couldn't find prazi for fish in my country so i purchased one for dog use. The pill contains 50mg of Prazi and 2 mg of abamectinum. I followed the dose of 100mg/10gal and i dissolved 12 tablets in maybe, well not more than 25ml of vodka (the cheapest i could find - 37.5% vol.) then mixed this solution into 10 gal. of water and added to the tank. After i poured everything in the tank the water looked kinda milky. I had to leave the house for about 3 hours and when i came back i went to check up on the tank. The discus seemed fine but i believe they were still breathing with one gill only( i'm certain about one of them and not sure about the other). Apart from that, they looked fine - picking for food at the bottom, came to greet me etc... After taking a closer look at the tank i spotted one of my zebra snails laying on the bottom with the shell opening pointing upwards. If you never had snails this generally means the snail is a ghost. I looked for the other one and it was on a piece of driftwood where there normally is loads of GSA but it was not moving. I looked for the small brown snails and saw maybe 4-5 of them with body overexposed from the shell (like they were trying to flee from it) and not moving. I could only find one of my BNs at the front part of my tank and although it was breathing it did not look happy at all. I thought the prazi might have done something to it so i decided to put it in a separate tank with good water. It took me about 20 minutes to set up the tank and by the time i was done the pleco had nearly "gone". Quickly i took it out and into the other tank and started searching for the other two plecos. I found them but they were hardly breathing. I put them into the other tank too, trying to save them. By this time my Cory's did not look good either. I caught them basically with my hand (it was easier with all the plants in the tank) and put them in the tank with both snails and the 3 BNs expecting them to die. I left them in there with heavy aireation and quickly did around 60% water change in the main tank because i did not want to start losing any of my discus. I guess i just panicked
. While doing the WC i counted all 4 of the Otto's and they seemed fine. I did not bother catching them because is no fun trying to catch a little Otto that doesn't want to be caught in a planted tank...
So now about 6 hours after i dosed prazi i have 7 discus and 4 Otto's that look fine, 4 Cory's that may survive (not sure yet), 3 dead high fin BNs plecos and 2 probably dead zebra snails.
So to sum it up - 100mg/10gal of Prazi for 3 hours
1.was deadly to i guess all little brown snails and 3 of 3 BN's plecos.
2. Had very negative effect on 2 of 2 Zebra snail and 4 of 4 Cory's Sp. Jully
3. Had positive or no effect to all 7 discus and 4 Otto's.
Hope this helps anyone looking for answers. I'm not saying prazi shoud not be used as a medicine but rather as a word of warning. I would personally take all my catfish and snails, i want to keep alive, out of the comunity tank before i dose again.
P.S. Sorry if my English is bad but is not my mother tongue.
Re: Praziquantel products and adverse reactions
Reply With QuoteOriginally Posted by KuPoB_K
Hi everyone,
im using this prazi gold by the brand eiho but even the prazi on its bottle is spelled wrongly -.-! it still cost around US$8 tho with the wrong spelling.. 
