FAQ: I've been dosing with Seachem Cupramine™ and then I added Product X and everything died. What happened?

If Product X is a reducing agent such as ParaGuard™ (or other aldehyde based medications), or if you overdose with a dechlorinator, such as Prime® then the Cu²⁺ will be reduced to Cu⁺. Cu⁺ is 10 times more toxic than ²⁺.