Has Tpn+ Got Copper In?

[ellena]

I bought 6 amano shrimp 28th Dec and they're in a tank with a betta. Tank has never had coppe rin. I'm dosing TPN+ and one of them is going the colour of TPN+/myzaxin. Should I be worried?

 

[AdAndrews]

TPN+ will have a minute ammount of copper in it, which would come from the trace mix that tropica use to make the fertiliser, however, its so small it wouldnt have an effect on inverts.

 

[ellena]

Good to know, thanks