Ok so for any of you that have seen my other post you know i recently switched over to a sump from canister filters. So before with my canister filters i had between 5ppm and 10 ppm nitrate and everything els was testing fine. Now that i have had the sump, since the beggining of setting it up im at over 20ppm nitrate and its bugging me lol. Everything in my tank seems to be doing better do, Corals are more open and i have a grip of copepods on my glass, Anyways this is what i did. \n \nI put in my sump, i added all the roble rock from my canister filters into the refugium overflow side, I also added 10 pounds of new Cured Live rock into the refugium section with some chaeto, But now im having the nitrate issues, i just recently switched over to using red sea reef pro salt, im hopping this will help with my corals looking even better, But nitrates are still the same. i have ben trying to bring them down this week doing a 25% water change 3 times in the week. i have done it 2 times already and it seems a little better, hopefully when i do it again tommorow it will improve some more. \n \nSince my last post i have since given 2 firefish away. Im also thinking it might be because im not using a filter sock on the refugium side and i still have no clean up crew on that side ??? the sump section i clean the filter sock every 3 days. \n \nWell any help would be great !!!!\n \n \nThanks Guys.