i just did this thread but i am writing it again cause i do not c it. \n \ntwo weeks ago i had bought a lionfish but he was too hard to keep so i went to get rid of him but in the proccess of catching him i accidently knocked a giant can of opened flake food into the tank. at the time i did not check the nitrates cause i knew they were high. ever since then i have been doing small water changes and last night i did a 25% water change. i thought that would do the trick but i just checked my nitrates a second ago and they are at 40 ppm! the strange thing is thta my fish are ok. the day it happened my trigger got ick but i medicated the tank and everybody was alright. how do i lower the nitrates quickly so that there are no long term damages to my system.