- 4 Jan 2013
I am just trying to get my head around what stuff is in my tank water. I understand that when I add the inorganic salts, KNO3 etc, they dissociate and we have all these various ions zapping around our tanks. Plants use these ions for various functions in order to live, so they are being used up and thats why we have EI. Fish produce ammonia, NH4, and that is partially used by the plants but our filters use plenty of O2 molecules to turn this into NO2 and then NO3, which is also dealt with by our plants. Is this NO3 in the same form as our inorganic NO3 salts we add in EI? When I hear people talk of organic waste I am not exactly sure what that is? I know plants produce waste but I can't seem to find what (apart from O2 and CO2).... Have I got carbon compounds floating around?