Something’s in the water…

Our hydroponics system is still working well on its own.  New growth has begun and no plants have died besides one radish plant that we attempted to transplant.  This death occurred because we tried not to disturb the radish next to it and in doing so may have just ripped out the plant rather than actually uprooting it.  The only potential issue that I see in the system is that the water has started to get murky and slightly cloudier than when it began.  We will have to look into that further tomorrow by checking the pH or something.  I am also including a photo of the system working on its own.