Is a copper decoration ok in a fighting fish fresh water fish tank?

Answer

I try to avoid anything copper in my fish tanks. When I worked at the aquarium, it was always awful when we had to fish out pennies from the touch tanks because the copper in the pennies would mess with the water quality.

Updated on April 12, 2018

Original Article:

Decorating Your Fish Tank: Dos and Don'ts
By Alex
working