Another question about coppersafe

[krustytheclownfish]

In the directions it says it adjusts the copper level to 1.5 to 2.0ppm if the recommended amount is used, but on this bb I've read that a level of .2ppm is the amount to aim for. Pretty big difference, what's up?

 

[pufferlover]

When using copper make sure you have a test kit available to help you keep it on track. Altho the copper kits are not the best science can offer they are a must.