Cooper in reef tank

[Smallslandreefer]

Hey guys, i just have a quick question, i would love to here your feedback. I got my icp test and the only concerning thing was the copper levels which test at 6.67 mg per liter. Is that acceptable or should i take action? B) whats the maximum acceptable level? C) my rodi water tested 3.5 mg per liter which i guess thats were the coper came from, any suggestions on what to do? Or is this level non toxic to my corals
My tank is 350 litre net water volume

 

[vetteguy53081]

Hey guys, i just have a quick question, i would love to here your feedback. I got my icp test and the only concerning thing was the copper levels which test at 6.67 mg per liter. Is that acceptable or should i take action? B) whats the maximum acceptable level? C) my rodi water tested 3.5 mg per liter which i guess thats were the coper came from, any suggestions on what to do? Or is this level non toxic to my corals
My tank is 350 litre net water volume

If there are any corals, or snails and other inverts in tank or intention to add some of the listed, you will want to utilize cuprisorb and continuously run carbon or chemipure blue to remove any traces of copper
A copper test kit such as hanna will also determine if any traces

 

[Smallslandreefer]

If there are any corals, or snails and other inverts in tank or intention to add some of the listed, you will want to utilize cuprisorb and continuously run carbon or chemipure blue to remove any traces of copper
A copper test kit such as hanna will also determine if any traces

Thanks for the reply. So that levels are indeed toxic? Can they result to coral death?

 

[vetteguy53081]

Thanks for the reply. So that levels are indeed toxic? Can they result to coral death?

Not that they are deadly but as you may know, small traces are unacceptable with coral

 

[gbroadbridge]

Hey guys, i just have a quick question, i would love to here your feedback. I got my icp test and the only concerning thing was the copper levels which test at 6.67 mg per liter. Is that acceptable or should i take action? B) whats the maximum acceptable level? C) my rodi water tested 3.5 mg per liter which i guess thats were the coper came from, any suggestions on what to do? Or is this level non toxic to my corals
My tank is 350 litre net water volume

It's 6.67 micrograms per litre, not ppm. 1000 times smaller.

I'd still remove it with polyfilter material.

 

[Smallslandreefer]

It's 6.67 micrograms per litre, not ppm. 1000 times smaller.

I'd still remove it with polyfilter material.

Aa interesting. I will try and fit some polyfilter in sump. Probably in the bubble trap compartment

 

[Smallslandreefer]

Not that they are deadly but as you may know, small traces are unacceptable with coral

Thanks i will try and remove it. Does activated carbon remove cooper as well?

 

[Randy Holmes-Farley]

Which ICP company is this?

Copper is required at some level and toxic at higher levels.

There's no specific number target, but I've had copper in my tank at 10-15 ug/L without apparent issue.

I'd just make sure there are no metal parts in the tank and not worry too much.

If I wanted to remove copper and other metals (good or bad, you cannot chose which), a polyfilter or cuprisorb or metasorb will work. GAC may work, since the copper is likely bound to organics.

 

[Smallslandreefer]

Thank you guys for the knowledge i really appreciate it

 

[Smallslandreefer]

Which ICP company is this?

Copper is required at some level and toxic at higher levels.

There's no specific number target, but I've had copper in my tank at 10-15 ug/L without apparent issue.

I'd just make sure there are no metal parts in the tank and not worry too much.

If I wanted to remove copper and other metals (good or bad, you cannot chose which), a polyfilter or cuprisorb or metasorb will work. GAC may work, since the copper is likely bound to organics.

Hey Randy, thank you for your reply. The ICP is ATI. I don't really know if i will go with ATI again, they got my alk at 7.7 dkh and my salinity at 33.5 and i kept retesting with my hanna and its at 8.3-8,4 dkh and salinity is 35 since i recalibrated my refractometer using recalibration solution and rodi water, making sure temperature was around 25 celcious. To be fair the sample i sent took 12 days to arrive and be tested so i guess their might have been some inaccuracy.

 

[Randy Holmes-Farley]

Hey Randy, thank you for your reply. The ICP is ATI. I don't really know if i will go with ATI again, they got my alk at 7.7 dkh and my salinity at 33.5 and i kept retesting with my hanna and its at 8.3-8,4 dkh and salinity is 35 since i recalibrated my refractometer using recalibration solution and rodi water, making sure temperature was around 25 celcious. To be fair the sample i sent took 12 days to arrive and be tested so i guess their might have been some inaccuracy.

Ok, ATI is more likely to get copper correct than icp analysis based on published testing.

 

[gbroadbridge]

Hey Randy, thank you for your reply. The ICP is ATI. I don't really know if i will go with ATI again, they got my alk at 7.7 dkh and my salinity at 33.5 and i kept retesting with my hanna and its at 8.3-8,4 dkh and salinity is 35 since i recalibrated my refractometer using recalibration solution and rodi water, making sure temperature was around 25 celcious. To be fair the sample i sent took 12 days to arrive and be tested so i guess their might have been some inaccuracy.

The Hanna Alk checker is not particularly accurate.
I assume ATI are doing an acid titration which is probably more accurate, but have no way of knowing that for sure.

I doubt they have made an error with salinity.