Water evaporation and topping up with kalk.

Discussion in 'General Discussions and Advice' started by pXius, 11 Jul 2011.

  1. pXius

    pXius

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    I'm doing some research regarding dosing kalk / keeping calcium/mag up.

    The short version of my findings:

    Kalkstirrer/reactor: Its dependent on top ups

    Calcium Reactor: Not dependent on top ups more benefits in terms of stable ph for sps etc, but expensive.

    So my question is:

    How much does your evaporation differ from winter to summer?

    I've got quite a bit of evaporation, 5L easily over 24hours. So a kalk reactor will be effective with an ATU, BUT, I dont know if my evaporation will significantly decreased come summertime...

    I don't have much heat as my lighting is LED only. My tank temp is stable 24 with a max drop to 23 early mornings (like 3am).

    I don't want to invest in something that might turn around and screw me over summertime :p
     
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  3. coswecanfly

    coswecanfly

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    Evaporation will probably increase in summer time... ??? :lol:
     
  4. pXius

    pXius Thread Starter

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    Thats what my head tells me aswell, more heat = more evaporation, but I was told that the extreme cold outside the tank combined with the higher water temp in the tank can cause more evaporation...

    If this is not the case I'll be one happy chap :)
     
  5. coswecanfly

    coswecanfly

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    I still think it will increase in summer but I'm just a newb with a sense of logic... :whistling:
     
  6. pXius

    pXius Thread Starter

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    Then its logic 2: Cold winter theory 0.

    When this hits 3 someone close the thread :p
     
  7. coswecanfly

    coswecanfly

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    Hi, my name is Jock and I say it's 3... :biggrin:
     
  8. ashley100

    ashley100

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    to throw a spanner in the works i found my tank looses more water in winter i just find im doing more top ups in winter than summer
     
  9. coswecanfly

    coswecanfly

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    Damn... :blush:
     
  10. ashley100

    ashley100

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    but i would agree should lose more in summer
     
  11. pXius

    pXius Thread Starter

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    Logic: 2
    Winter Theory: 1

    Shall we make it first to get to 5?
     
  12. ashley100

    ashley100

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    ya give people like me a chance LOL
     
  13. coswecanfly

    coswecanfly

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    Sounds like a plan... Eagerly watching this because my current tank has a lid... :biggrin:
     
  14. Tony

    Tony

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    It definately does. The heaters are all working which causes more evaporation opposed to external heat heating the tank.

    I hate kalk in a top up as it is extremely hit and miss and erratic. These additions should be based on the consumption of the tank and not evaporation. A SPS dominated tank will need tons more calcium and alkalinity than a softy tank which could survive with an aragonite substrate and DSB to maintain all the calcium needs, so why use kalk in top ups?
     
  15. jacoc

    jacoc

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    In winte you topup doubble the water than you would in summer..logic..hot water evaporate quicer when outside temp is lower...
     
  16. pXius

    pXius Thread Starter

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    My substrate is playsand btw, also running biopellets instead of a dsb.

    My tank will be lps and softie dominated, I'm just a bit worried about the mag and cal levels for the lps.
     
  17. Dewald@Dorry

    Dewald@Dorry

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    Yip, evaporation does happen quicker in winter that in summer. Not everything in this hobby makes sence or are logic!!:1:

    I personally love kalk. But only when used with a proper reactor like a stirrer with a small return chamber for frequent little top-ups..

    For SPS you need more than just kalk. Consider dosing pumps as an laternative as they are cheaper once off as a calcium reactor. But they do have running cost where the calcium reactor has FAR less running cost.
     
  18. Hermanus

    Hermanus

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    You top up more in winter than in summer. I have a sps dom tank and kalk alone is not doing it. Ca reactor just to expensive at the moment.:p So it is a up hill batle for me with the KH and Ca,will just have to make a plan on the CA reactor.
     
  19. Tony Ingram

    Tony Ingram

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  20. Hermanus

    Hermanus

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    Well I think it will differ on how cold the winter is. In Harrismith it was between minus 6 and minus 9 for the last 3 weeks and as max temp between 11 and 15. So my top up is much more in winter than summer and I also run cooling fans in summer.
     
  21. SchyffS

    SchyffS Reef Aquarist

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    Not gonna comment on the avaporation because its very unpredictable.

    Gonna comment on benefits of kalk and calcium reactor:
    Kalk - connected in line with auto top up during the evening(timer) to operate the auto top up pump 2 hours after lights out. Will add calcium rich water at night, will also increase pH. Ph normally drops at night so it will increase pH...the exact measurement increase must be measured in your tank. Not recomended to use with a calcium reactor.

    Calcium reactor - works 24/7, adds both calcium, carbonates and magnesium. Very controllable, takes a bit of tweaking but worth the effort.
     
    Last edited: 11 Jul 2011
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