[Help on QT Cupramine]

Dose it wait 48hrs and dose it again same amount then test.

Pulled out all my fishes and place it in a qt last night. i added biomedia from old tank and some old water. 
I dose cupramine at half the recommended levels. Using salfiert copper test kit but it shows 0. I increase the dosage and tested again, still 0 on the test kit. I tried testing separately a small volume of water and added copper separately, still 0. Any idea whats the issue?

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[New to marine]

It comes with light, skimmer with air pump
The skimmer does not skim properly so I spend $85 buy QQ2 skimmer


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And New hydra light

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[New to marine]

63L tank

My fishes are
1 yellow tang
1 purple tang
1 flame angel
1 naoko fairy wrasse
1 clown fish
1 Dracula Goby
1 dottyback
3 green chromis
4 electric blue hermit crab
1 fire shrimp

My corals are
2 hammer corals
3 zoa on frag plugs
1 toad stool
1 brain coral
1 sponge



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Where you bought this Nano Marine 4 tank from? May i know and how much? Thanks.

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