| Re: What Am I Doing Wrong? How often do you do water changes and what % ? How many fish do you have and how often do you feed ? Which skimmer are you using ? Do you have a refugium with macro algae for nutrient export ? What is the total combined flow from your powerheads and return pump ? Do you use a prefilter so you don't get acumulation of food/detritus in your bio-media ?
I'm not familiar with marble chips but I suspect you get alot of acumulation of detritus and food which will contribute to high nitrate levels, how often do you vaccum it ?
__________________ Robert  My Cube “A spirit is manifest in the laws of the Universe—a spirit vastly superior to that of man, and one in the face of which we with our modest powers must feel humble.” Albert Einstein |