How long after marine velvet kills should tank be fallow?

[Breakthecycle2]

You were lucky. CP is the gold standard for treating velvet.

Not really. I've had to deal with it twice. Both times copper cleared it.

 

[snorvich]

Someone said 74 days, someone 90 days. Now you said 6 weeks.

Please tell me, how long exactly?

Thanks

Velvet is six weeks.

 

[Tanthaitrung]

Velvet is six weeks.

Thanks Steve