FishfarmerDave
04-14-2006, 02:11 PM
Can anyonre please tell me the concentration and duration for treating Costia and Trichodina in the gills of Grass Carp. I intend treating with Chloramine T followed by formaline.
I am a trout man and know how to control these parasites at 'normal' temperatures and with flow-through systems but the grass carp are in a 2meter tank at about 18C and with only minimal water replacement. (4-6 changes per day). I can lower the tank by half but the incoming water is 5C so flushing would cause a considerable stress.
The grass carp are 4 - 6 inches long and have stopped feeding.
I would starve for 24hrs (although they are not feeding)
Treat with Chlor T at 4ppm for 1/2hour on day one to remove mucus
Treat with 1ml in 5l (40%)formaline for 1/2 hour to kill the parasies.
I am concerned about the residual concentration of formaline causing burning of the gills.
Anyone any advice?
Dave
I am a trout man and know how to control these parasites at 'normal' temperatures and with flow-through systems but the grass carp are in a 2meter tank at about 18C and with only minimal water replacement. (4-6 changes per day). I can lower the tank by half but the incoming water is 5C so flushing would cause a considerable stress.
The grass carp are 4 - 6 inches long and have stopped feeding.
I would starve for 24hrs (although they are not feeding)
Treat with Chlor T at 4ppm for 1/2hour on day one to remove mucus
Treat with 1ml in 5l (40%)formaline for 1/2 hour to kill the parasies.
I am concerned about the residual concentration of formaline causing burning of the gills.
Anyone any advice?
Dave