Prazipro is more effective for external worms so for now I would mix the metro +focus using the instructions in the link I shared above. You should order some general cure and start using that in place of just the metro when it comes. Feed the medicated food for 2 to 3 weeksI have prazipro / focus and metroplex. What type of mix should I make ?

and when their breathing got more labored, they began gasping at the surface also. They also looked terrible by that point, but yours seems to look okay. I’m not sure how much internal parasites will affect breathing. Maybe someone else can offer an opinion since it seems he may have that. Also, do keep in mind that sometimes their poop can be white just from food. It’s the stringy poop combined with the white color that may point to internal parasites, from what I understand anyways.