Bullnugget
Aquarium Advice Activist
I have a Marineland emperor 400. It comes with the stand carbon cartridge but also uses a empty cartridge that I usualy fill up with pete granules. My tapwater has a high pH naturally. When I first got the aquarium from my dad he had a thing of white carbon rocks, I think that's what they are called?, but they were to help with ammonia. Well I ran out of the pete granules, I was only replacing them once a month or so with a new carbon filter. The time has come, do I continue using them or what else should I use?