New Life Spectrum fish food and copper

[Slick Fork]

I've fed NLS pellets in my various tanks every other day since June of 2006 when the 10 gallon began my SW adventure. So, some of my rock is now 3 years with this "copper" and I have yet to see any ill effects. I don't have any plans on discontinuing it's use.

This "copper Proteinate" is probably chemically completely different then the copper everyone worries about in their tanks.