Yesterday I bought some new fish (platies) & I was wondering if it was ok to do my weekly vacuum and partial water change today? Or should I give them a few days to get settled in? I would not be removing them from the tank to do this, but was not sure if another change in water would be stressful to them. Thanks! Ammonia between 0 and .25 parts per million (not quite the color of 0 ppm but not quite the color of .25 ppm either) Nitrites 0 ppm Nitrates 10 ppm Thanks!!