Ok I ended up finding one reply by humble:
Two proactive methods for treating ich + velvet + brook + uronema are as follows:
- Chloroquine phosphate
- Combining copper + metronidazole
If using API General Cure with copper, just substitute your first & last metro treatment for GC. (Since GC already contains metro, you want to
avoid overdosing by only using Metroplex or straight metronidazole powder
48 hrs before or after GC.) Treatment regimen would go like this:
Day 1 - Dose General Cure
Day 3 - Dose metro
Day 5 - Dose metro
Day 7 - Dose General Cure
Day 9 - Dose metro (probably optional at this point)
^^ That will deworm a fish + effectively treat for brook & uronema. Add copper to the above, and you're
also prophylactically treating for ich + velvet.
Seems to imply the extra metro doses are needed to prophylatically cover brook and Uronema?