Lanthanum chloride and cupramine

[kwp]

Anyone experienced a fish loss after dosing a tank with cupramine? I dose lanthanum chloride on a regular basis to control phosphates with great success. My problem is that I recently got a powder brown tang that developed ich. I dosed the tank with cupramine to the required therapeutic range and lose a niger trigger, powder brown tang and an ocellaris clown overnight. I have a 210 gallon tank and I did a 50 gallon water change and the remaining fish are doing OK and are eating. Anyone experienced this reaction between Lanthanum Chloride and Cupramine?

 

[Cory]

What kind of lanthanum chloride? That would be more of a concern to me imo because i haven't heard of much people lose fish from copper unless overdosed.

 

[kwp]

The product is SeaKleer phosphate remover

 

[kwp]

I am using SeaKleer phosphate remover

 

[Randy Holmes-Farley Verified Community Expert]

I do not think there is any direct reaction that is possible between lanthanum chloride and cupramine.

 

[kwp]

Ok, it’s just strange that shortly after adding Cupramine, I have fish loss.

 

[Randy Holmes-Farley Verified Community Expert]

Could be either or both, but not some reacted combination. Lanthanum won't, chemically, react with anything much differently than calcium.