The white marks looks like stress marks from what I can see?
For copper, I wouldn’t worry so much about the “dose” as monitoring the level increases until it gets where you need it. What kind of copper are you using and how will you be testing it?
The normal general cure dose (1 packet for 10 gallons) should be ok for the wrasse? What symptoms are you seeing from him?
And NEVER starve fish, keeping the fish eating through treatment is a huge part of how successful you will be. The majority of losses for me occurred when a fish refused or stopped eating.
For copper, I wouldn’t worry so much about the “dose” as monitoring the level increases until it gets where you need it. What kind of copper are you using and how will you be testing it?
The normal general cure dose (1 packet for 10 gallons) should be ok for the wrasse? What symptoms are you seeing from him?
And NEVER starve fish, keeping the fish eating through treatment is a huge part of how successful you will be. The majority of losses for me occurred when a fish refused or stopped eating.
