EI macro mix & white filaments

Discussion in 'The Nursery' started by dart, Mar 16, 2017.

  1. dart
    Offline

    dart Green fingers

    • APSA Member
    9%
    Joined:
    Mar 20, 2007
    Messages:
    407
    Likes Received:
    84
    Trophy Points:
    38
    Location:
    Cape Towm
    I've noticed that my EI macro mix (KNO3 + KH2PO4 + KCl + MgSO4.7H2O) in distilled water starts getting (growing?) short white stringy filaments after only a few days.

    Has anyone seen this? Any idea what its from and if its an issue?

    It is possibly from the mix being to concentrated... but I would then expect crystals that settle rather than bits floating around. My other option is to dry dose but my tank is quite small and measuring the small quantities can be a PITA so I'd rather avoid that unless there is a problem.

    Thanks
     
  2. TheGrissom
    Offline

    TheGrissom Green fingers

    • APSA Member
    51%
    Joined:
    Sep 17, 2010
    Messages:
    940
    Likes Received:
    190
    Trophy Points:
    53
    Location:
    Port Elizabeth
    Is it not bacterial growth? I know when I work will MilliQ water after a few days it starts to go cloudy with a white filament type growth. I doubt the concentration of the mix has anything to do with it but to be sure you could just leave the RO water in a container and see what happens.
     
  3. dart
    Offline

    dart Green fingers

    • APSA Member
    9%
    Joined:
    Mar 20, 2007
    Messages:
    407
    Likes Received:
    84
    Trophy Points:
    38
    Location:
    Cape Towm
    Its distilled water from the pharmacy and there is nothing growing in the one that is already opened. But bacterial growth in the mix, yes sounds possible.

    How big an issue is that? I'm assuming its not ideal. Possibly messing with concentration etc? :(
     
  4. dart
    Offline

    dart Green fingers

    • APSA Member
    9%
    Joined:
    Mar 20, 2007
    Messages:
    407
    Likes Received:
    84
    Trophy Points:
    38
    Location:
    Cape Towm
    I once saw someone suggesting freezing the mix in single dose sized blocks. I guess I can try that...
     
  5. DC88
    Offline

    DC88 Green fingers

    • APSA Member
    51%
    Joined:
    Jan 8, 2015
    Messages:
    220
    Likes Received:
    126
    Trophy Points:
    53
    Location:
    Greenstone
    put some excel in the mixture, it should stop stuff growing. i did it to mine, and it seems fine up till now, 2 weeks in.
     
  6. TheGrissom
    Offline

    TheGrissom Green fingers

    • APSA Member
    51%
    Joined:
    Sep 17, 2010
    Messages:
    940
    Likes Received:
    190
    Trophy Points:
    53
    Location:
    Port Elizabeth
    Good idea.
     
    DC88 likes this.
  7. wearsbunnyslippers
    Offline

    wearsbunnyslippers Administrator Staff Member

    • Super Admin
    23%
    Joined:
    Dec 29, 2007
    Messages:
    6,333
    Likes Received:
    1,122
    Trophy Points:
    223
    Location:
    Johannesburg South
    you can also add some citric acid, or pool acid, just a couple of drops, but please be careful with pool acid...
     
  8. dart
    Offline

    dart Green fingers

    • APSA Member
    9%
    Joined:
    Mar 20, 2007
    Messages:
    407
    Likes Received:
    84
    Trophy Points:
    38
    Location:
    Cape Towm
    Great ideas, thanks all. I'll try both and see.
     
: EI, Fertilizer

Share This Page