Frank wrote:
fusQuanto wrote,

i figured
the ferts would have the same problem too because the carbon is soaking
up the nutrients? no?

That makes no sense. Who says this?


Makes sence to me - activated carbon removes; ammonia, nitrite, organic
compounds such as acids, phenolics, proteins, carbohydrates, hormones,
drugs, chemicals, trace elements, and natural metabolic compounds. I
know it removes heavy metals, it sucked the iron right out of my liquid
fertilizer!
................... Frank

I accidentally left some carbon in one of my planted tanks - result was
the plants were decimated....

Gill