Best Copper med for nano fish?

[SauceyReef]

Copper will not absorb into the glass, and I'm 99.9% sure it won't absorb into the silicone either. Tank should be fine for something other than QT after a good scrubbing with a splash of bleach and water.

Thank you! Good info to hear from multiple people.

 

[Jay Hemdal Verified Community Expert]

Copper is going to absorb into the glass and silicone also and the tank will be useless other than for QT - right?

No - it can be rinsed off glass, silicone and most plastics. It absorbs/adsorbs onto calcium based materials though. Other porous materials (like clay flower pots) may or may not be an issue….

 

[SauceyReef]

Curious. Is it dangerous for humans in concentrated amounts / liquid form? Do I have to be really careful with my skin?

 

[Jay Hemdal Verified Community Expert]

Curious. Is it dangerous for humans in concentrated amounts / liquid form? Do I have to be really careful with my skin?

It is not toxic to humans in the manner in which it is used. Obviously, keep out of reach of children and don't ingest it. Best to wear gloves when working around any aquarium. Here is the MSDS for coppersafe:
https://fritzaquatics.com/assets/files/uploads/COPPERSAFE-SDS-2014.pdf