Effect of overdosing copper

[HKfshkpr1]

Hi I'm using "chelated" copper for my new fish in quarantine. I followd instruction and used API test kit to test, expecting the PPM close to 1.5. However, it only reads about 1.0.

I'll add extra copper. My question is: in case I overdose, "when" will the effect show? Will it show immediately? or will it show a few days later when there's no way to save the fish?

Thanks for you help!

 

[HotRocks]

Hi I'm using "chelated" copper for my new fish in quarantine. I followd instruction and used API test kit to test, expecting the PPM close to 1.5. However, it only reads about 1.0.

I'll add extra copper. My question is: in case I overdose, "when" will the effect show? Will it show immediately? or will it show a few days later when there's no way to save the fish?

Thanks for you help!

Which copper product are you using?

Tons of people, myself included find that the result of the API test reads lower than what the actual copper level is. The only real way to know this is by using the Hanna checker which provides a digital result.

An overdose is likely non-reversable. The damage is done internally before you will notice it. It's unfortunate that I know this from experience, but I do.

 

[redfishbluefish]

The therapeutic range of chelated copper is 1.5 - 2.0. I do know some fish don't like copper, and if too high, bye-bye. Let's see what @HotRocks , @Humblefish , @4FordFamily , and @melypr1985 have to say about too much.

 

[HotRocks]

The therapeutic range of chelated copper is 1.5 - 2.0. I do know some fish don't like copper, and if too high, bye-bye. Let's see what @HotRocks , @Humblefish , @4FordFamily , and @melypr1985 have to say about too much.

To add to this ^^^^. You may experience a fish that becomes lethargic or stops eating in copper even in the 1.75ppm-2.0ppm range. Not because of an overdose, just a copper sensitive fish that you would have to move to another treatment method.

Copper is poison, so if a level of 2.5ppm is exceeded for a considerable length of time you probably won't see much of a survival rate.

 

[4FordFamily]

I have had some wrasse behave poorly in copper and then when it was reduced they recovered and began to swim more normally. Unfortunately they all eventually died... yeah I know the story is anticlimactic

 

[HKfshkpr1]

Which copper product are you using?

Tons of people, myself included find that the result of the API test reads lower than what the actual copper level is. The only real way to know this is by using the Hanna checker which provides a digital result.

An overdose is likely non-reversable. The damage is done internally before you will notice it. It's unfortunate that I know this from experience, but I do.

Thank you all! I got the API test kit after reading the "Copper test kits" thread in the fish disease treatment forum. Wish I knew.........
Anybody know "about how far" the reading's off?