too much carbon a bad thing?

[moo0o]

if i fill up half a phosban reactor with carbon on my 55g, will there be any negative effects?

 

[kurtg]

I fill 1/3 of my reactor with carbon. Seems to work for me.

 

[blackheart]

nah your fine but if i where you i would use chemipure

 

[msn711]

Why chemipure instead of carbon?