Run the copper treatment for 2 weeks, then do some big (80-90%) water changes and gravel clean the substrate each time you do the water change. Then add carbon for a week. Then put shrimp and snails back in.
If they are still rubbing after that, use a deworming medication like Praziquantel or Flubendazole and use that once a week for 3-4 weeks.
It's been two weeks since I added the copper based medication (on April 13th), and I'm still seeing flicking and rolling from the corydoras. I went ahead and ordered a Flubendazole based medication by NT labs which @Essjay recommended. It should arrive on Tuesday or Wednesday this week.
Since I'm treating the tank with another medication unsafe for inverts, I won't be adding any inverts back. Will that mean I can add the new medication sooner than if I were adding inverts back again?
Even when using the tips and tricks like pinching the hose to clean sand, I still find it tricky and an ordeal!
I'm thinking of deep-deep-cleaning the tank, not quite sanitising it
1. Remove fish and plants
2. Gravel vac the sand into a bucket and thoroughly rinse it with tap water
3. Fully drain the empty tank and clean all the tank surfaces
4. Rise and clean the equipment and plants in tap water*
5. Add the sand, equipment, plants back into the tank, fill with warm dechlorinated water
6. Run the tank normally for an hour or two
7. Reintroduce the corydoras
*Either cleaning the filter sponges in clean tank water or discarding them and using cycled media from my big canister filter
If I deep clean the tank like that, are multiple water changes still necessary?(80-90%) water changes and gravel clean the substrate each time you do the water change.
It's weird, but that kind of deep clean feels more manageable than multiple large water changes with substrate cleaning