how do you inject CO2?

Discussion in 'Carbon Dioxide (CO2)' started by aaronnorth, 11 Aug 2008.

?

How do you inject CO2?

  1. 24/7

    10 vote(s)
    33.3%
  2. set to be on/ off before lights

    17 vote(s)
    56.7%
  3. controlled via pH controller

    3 vote(s)
    10.0%
  4. all 3

    0 vote(s)
    0.0%
  1. aaronnorth

    aaronnorth Member

    Messages:
    3,955
    Location:
    worksop, nottinghamshire
    Well, how do you?

    I have it come on 2hr before lights on, and 1hr off before lights off simply to save CO2
     
  2. LondonDragon

    LondonDragon Administrator Staff Member

    Messages:
    10,281
    Location:
    London
    2 hours before lights on, and 3 hours before light out.
     
  3. Ed Seeley

    Ed Seeley Member

    Messages:
    3,262
    Location:
    Nottingham
    Comes on half an hour before lights and off an hour before dark.
     
  4. Dan Crawford

    Dan Crawford Founder Staff Member

    Messages:
    3,266
    Location:
    Daventry, Northants
    24/7 for me.
     
  5. Egmel

    Egmel Member

    Messages:
    724
    Location:
    Guildford, Surrey, UK
    24/7 DIY... though if I had pressurised I'd be using a solenoid and timer combo. Currently have to have bubbles on overnight and boy are they annoying!
     
  6. durtydurty

    durtydurty Member

    Messages:
    118
    Location:
    Staring at my Galaxies in Wilts
    I used to go 24/7 and found I had really good results, but after killing a Mollie and a white mountain cloud minnow through C02 poisoning I am a bit wary now.
     
  7. Themuleous

    Themuleous Member

    Messages:
    4,126
    Location:
    Aston, Oxfordshire
    I tried the solenoid route once, was to much hassle and to my mind just another thing that could go wrong. Keep is simple is my motto. The fish dont seem to mind the 24/7 CO2 and as we all know co2 stability is critical. If the solenoid broke and didn't come on when it was supposed too, that could spell algae farm. Why take the risk.

    Just my thoughts :)

    Sam
     
  8. a1Matt

    a1Matt Member

    Messages:
    2,518
    Location:
    Bromley
    My lights are on a 12 hour photoperiod and the CO2 is timed about an hour earlier than lights on and again at lights off.

    I use a homemade internal reactor. No solenoid as yet though.. I turn the powerhead on the reactor off and that effectively stops the CO2.

    I do have a solenoid and will put that into operation when i finish building my inline external reactor (am almost there...)
     
  9. SuperColey1

    SuperColey1 Member

    Messages:
    2,677
    Location:
    Lincoln UK
    You put both for 3 options. lol

    I currently do the 2 before on and 2 before off but have done the 24/7 previously too. Never have and never will use a Ph controller.

    Andy
     
  10. aaronnorth

    aaronnorth Member

    Messages:
    3,955
    Location:
    worksop, nottinghamshire
    i added the ph controller after so thats why :rolleyes:

    i'll change it :lol:
     
  11. Egmel

    Egmel Member

    Messages:
    724
    Location:
    Guildford, Surrey, UK
    I didn't think you could change a poll after people had started voting... could cause all sorts of... :? interesting effects :twisted:
     
  12. aaronnorth

    aaronnorth Member

    Messages:
    3,955
    Location:
    worksop, nottinghamshire
    i only changed the wording, it meant the smae thing and nobody had voted anyway ;)
     
  13. spider72

    spider72 Member

    Messages:
    116
    Location:
    Wick, Scotland
    I was using set to be on/off before lights option for some time and now I am using pH controler as I have soft tap water (2dKH) and pH swings has been quite significant. Now I have got stable pH 6.5 all the time and less wastage on CO2. I bought cheap pH controler from Indonesia (about 60£ delivered) and it works very well.
     
  14. Simon Dickenson

    Simon Dickenson Member

    Messages:
    45
    Location:
    Cornwall
    Co2 with lights on pure o2 at night - controversial!
     

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