Ich and a Yellow Coris Wrasse..........

[Reefie]

Originally Posted by daniella3d

That's because you introduced new parasites by introducing the other fish.

Ich has to go through its cycle and Paraguard must be redosed each day.

It's best to keep hypo at 1.009.

Even with hyposalinity you will see ich get through its cycle.

That was the same conclusion that I came to as well, however I thought that the Paraguard would have prevented the Purple Tang from contracting the Ich.

I have been dosing Paraguard daily for the past 2 weeks prior to the introduction of the newly caught fish.

Would 6 weeks of Hypo be enough? Or should I go 8 weeks?

[daniella3d]

It depends. If you introduced the other fish while the concentration of Paraguard was a bit low due to time spent in the tank, then probably some parasites made their way to the fish skin.

Remember that a quarantine tank is not so big so the fish are very confined and the parasites can find them easily and fast.

If you had put them all together with Paraguard, I might have been a different story.

Did you dose Paraguard right away when adding those fish?

Originally Posted by Reefie

That was the same conclusion that I came to as well, however I thought that the Paraguard would have prevented the Purple Tang from contracting the Ich.

I have been dosing Paraguard daily for the past 2 weeks prior to the introduction of the newly caught fish.

Would 6 weeks of Hypo be enough? Or should I go 8 weeks?