Planted Tank Guru
Join Date: Jul 2010
Location: British Columbia, Canada
If your discus do in fact have camallanus worms ( and your above comments have not convinced me that they have), then of course you have a more serious problem than I originally thought.
First things first - you need to immediately tackle the more pressing issue of the moment - and that is your obviously uncycled tank - which is the more critical problem for now.
I don't know how long you 'cycled' the tank nor by which method, but until the cycling is indeed completed, you need to do large wcs every day, while testing your water params each time for ammonia, nitrite and nitrate levels - in order to keep the toxicity to a minimum until the beneficial bacteria levels build up and are able to deal with it effectively.
Unfortunately too, your discus are very small juvies, whose immune systems are not yet very well developed, and they are more sensitive and susceptible to any toxicity, and to the harm being done by camallanus if they have them, than larger, more mature discus would be.
Now back to the worm issue - if they do have camallanus, that makes a large negative statement about the source/supplier of your discus, and I think you may want to eventually, if not even now, take that up with them, particularly if you lose any of those fish.
Meantime, if you feel quite certain they have camallanus, and you're determined to treat them for that, you may well find that Prazipro will not do the job effectively.
Most successful long-term treatments for camallanus seem to be achieved by medicating with Fenbendazole (Panacur), according to my research. (I've never personally had to deal with it).
BTW, how many discus do you have, and in what size of tank ?
Best of luck to you.