with out a doubt.
I literally seen a dead parasite coming from my fahaka's anus 2 days after treatment.
I use it monthly on my new batches of feeder fish as well. And have never seen a single parasite on any of my live eaters.
It contains
Metroonidazole
Praziquantel
diflubenzuron
acriflavine
Metro and prazi are the 2 most popular parasite meds availiable at this time.