Can Poly-Filter® actually remove all traces of any Copper Medication/Treatment? Will Intervetrabrates survive, in a
tank, that Poly-Filter® has removed the Copper?
Answer: Yes to both questions. In fact 8 sq. inches or ¼ of a Poly-Filter® will sorb 285.60 - 288.00 mg of Copper ions. Poly-Filter® sorbs any type of copper both chelated and nonchelated forms. We have treated quarantine tanks with copper-formalin for 14 months adding weekly (0.15 - 0.25mg/L concentration) then used Poly-Filter® (without a water change) to remove the copper down to trace element level (0.040 mg/L) and then added Invertebrates. Method of Analysis: Atomic Absorption EPA Methods 7210 & & 7211.