Esha2000...when To Remove

[craig855s]

My female platy has a white spot on it's tail (only 1,it looks like a piece of dandruff) and it has had it since monday,i got some eSHa2000 (recomended by LFS) and treated the tank over 3 days as per instructions, now the white spot on the platys tail seems to be shrinking slowly..the problem is the eSHa instructions do not say what point to remove the med and i have an amano shrimp in the tank (this med may contain copper,dont know because their isnt an ingredients list...but ive read online that it does contain copper)

Amano is currently still alive and not in any visual distress but i'd like to get the med out sooner rather than later..i dont have any carbon so would remove it by way of 3 large water changes over the weekend..unless of course it removes itself over time?

anyone any insight? if i removed it now would the platys spot begin to grow again?
Also its water change day today and my plants really need pruning and glass needs scraping etc so i dont wanna sit on my hands too long waiting for the spot to vanish before removing meds....but if thats what must be done then so be it,i may lose my amano,and get a dirty tank

 

[WILDER]

Is that long since I used the esha med. I would contact the manufacture or do a thread in tropical disucssion.

 

[glolite]

I contacted eSHa a few months back about the same thing and they replied that eSHa 2000 has a short treatment life ie: it becomes half as effective 24 hours after day 3, half as much again the next day etc. So I think a normal 20 to 40% water change should suffice. Incidently, they also said you can carry on dosing at the 2nd day dose if the infection doesn't clear and can double dose 1st day if infection severe.

 

[saz326]

If it hasnt changed much - are you sure the spot is "white spot"?

It could simply be a little nodule on her tail.

If possible isolate her - this way if she is ill then she gets some rest and cant pass the disease on. If no other fish in the tank have shown any signs of illness then I wouldnt want to dose the tank up a second time. Give her a 10 days in isolation and if no extra signs of illness pop up then I'd guess that the marking is something natural.

I have a black skirt tetra that has defects on its scales - they look just like white spot from some angles. she is perfectly well tho, and is now 2 years old.