Copper PPM

bjhubb · 09/20/2009, 11:39 AM

What ppm of copper is considered toxic for fish?

bjhubb · 09/20/2009, 03:46 PM

bump

mhltcob · 09/20/2009, 05:32 PM

it depends on what type of fish and what type of copper. Many fish can tolerate .5 ppm of cupramine safely while only tolerate .25 ppm of copper sulfate. Thereaputic levels are typically between .15 and .25 ppm for copper sulfate and .3-.5 ppm for cupramine. Some species will not tolerate thereaputic levels and therefore other treatments should be considered - chloroquin or hyposalinity for instance.

bjhubb · 09/20/2009, 07:00 PM

I have a bottle of Copper Power that contains 1.26% copper sulfate and the directions say to use at 2.5 ppm or one fluid ounce to each 20 gallons of water. On the bottle it says that it is 60 times less toxic to fish. This is quite a bit more than .25 ppm.

09/20/2009, 11:39 AM	#1
bjhubb Registered Member Join Date: May 2009 Location: Amarillo, TX Posts: 230	Copper PPM What ppm of copper is considered toxic for fish?

09/20/2009, 03:46 PM	#2
bjhubb Registered Member Join Date: May 2009 Location: Amarillo, TX Posts: 230	bump

09/20/2009, 05:32 PM	#3
mhltcob Registered Member Join Date: Nov 2002 Location: Atlanta Posts: 503	it depends on what type of fish and what type of copper. Many fish can tolerate .5 ppm of cupramine safely while only tolerate .25 ppm of copper sulfate. Thereaputic levels are typically between .15 and .25 ppm for copper sulfate and .3-.5 ppm for cupramine. Some species will not tolerate thereaputic levels and therefore other treatments should be considered - chloroquin or hyposalinity for instance.

09/20/2009, 07:00 PM	#4
bjhubb Registered Member Join Date: May 2009 Location: Amarillo, TX Posts: 230	I have a bottle of Copper Power that contains 1.26% copper sulfate and the directions say to use at 2.5 ppm or one fluid ounce to each 20 gallons of water. On the bottle it says that it is 60 times less toxic to fish. This is quite a bit more than .25 ppm.