Soon as i got home from work i was testing my water and noticed my nitrate jumped wayyy up. 40-50 ppm. Usually its very low. Last night i had put a new maxi jet 1200 on my jbj 28g nano cube. Curious if it just stirred my tank up which caused the spike?? Anyway I did a 5 gallon water change and it brought it down.. All the fish and coral seem to be doing good. Although my angel seems to be much more active that usual. But maybe because of increased flow. Not sure.. Any input would help. Thanks