calcium reactor vs doser

Discussion in 'Test Kits, Controllers, Reactors and Dosers' started by Jarred van niekerk, 8 Mar 2015.

  1. Jarred van niekerk

    Jarred van niekerk

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    which is the best option? my tank is around 600litres sps softies and lps
     
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  3. dallasg

    dallasg Moderator MASA Contributor

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    they both the same... in truth

    all depends on your alk and Ca consumption, and if you want to use DIY additives etc...

    i have used both, and my new tank i will dose using DIY additives
     
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  4. dallasg

    dallasg Moderator MASA Contributor

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    i would say 600L is probably here nor there, but as you get larger a CARX becomes more practical
     
  5. butcherman

    butcherman Moderator MASA Contributor

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    long term Carx will work out cheaper,

    Doser is easier to dial in and also to adjust
     
    Last edited: 8 Mar 2015
  6. Gavin Barberini

    Gavin Barberini

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    Hi There
    I have a 1350 litre 1.8x0.9x0.9 marine tanke with a 1.8x0.5x0.3 deep sump marine tank and the additives are costing me a fortune. Who can advise me on the best DIY additives and where where to buy what. I plan to do auto dosing and would be interested on advise in this regard as well.

    BEST REGARDS
    Gavin *********
     
    Last edited by a moderator: 8 Mar 2015
  7. dallasg

    dallasg Moderator MASA Contributor

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  8. butcherman

    butcherman Moderator MASA Contributor

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    gavin please be award not to post personal details on the forum, reserve these for PM messaging
     
  9. dallasg

    dallasg Moderator MASA Contributor

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    as for supply, there are a few places, warrem chemicals, protea chemicals
     
  10. irie ivan

    irie ivan MASA Contributor

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    "Best" is really a matter of personal opinion. Me personally would always opt for a calcium reactor, once dialled in, its truly set and forget.... Well almost, just check alk once in about 6 weeks and refill CO2 every 6 months plus and media once every 6 months. In terms of perfectly balanced and continuous stability.... ROCK SOLID!
    same can be achieved with dosers and diy chemicals, but the quality dosers cost the same as setting up a Carx, and fiddling with getting the quantities and mix perfect not quite for me...
    But i guess dialling in a carx can seem intimidating to someone who isn't familiar with it.
     
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  11. Raimund

    Raimund

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    Gavin - buy your MgCl, CaCl2, NaHCO3 in bulk at Protea Chemicals - works out v cheap to run a big tank ( mine's 2000l total)
    My top-up water has the NaHCO3 in it, and I have another container that doses Mg + Ca daily via a small pump and digital timer.
    You have to work out what your tank's daily consumption is over a few weeks and then mix your concentrations accordingly and things will remain stable and also hassle free. Just check levels weekly to stay on track as consumption changes as things grow.
     
  12. Francois

    Francois

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    To be quite honest.... if you run a tank higher than 1000L and decide to go full sps, a doser won't keep up with the sps demands and you would have to replace pumps and motors of the doser frequently. I'm on my second doser all ready. Best is to go with a doser, calcium reactor & kalk stirrer, if running a system higher than 1000L on a full SPS tank. A system Lower than a 1000L a doser would work perfectly, and if you want stretch out the maintenance on the doser I would recommend adding a kalk stirrer with the doser on systems lower than 1000L. I buy pharmaceutical grade chemicals from Kirsch Pharma in JHB
     
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  13. Francois

    Francois

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    I'm on the path now of adding a Carx on my system, as the doser and kalk stirrer can't keep up with my SPS demands. After adding the Carx, I'll dial down the doser and kalk stirrer. Dosing every two weeks 1180 grams of sodium bi-carb and 960 grams of Calcium Chloride is just toooo much for the doser.
     
    Last edited: 10 Mar 2015
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  14. Raimund

    Raimund

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    It's phenomanal to think what the sea provides for massive coral reefs in absolute balance and unlimited quantity
     
  15. Nemos Janitor

    Nemos Janitor

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    If one wants to store music on a hard drive one needs the capacity. LOL

    Dosers are brilliant or not, they are fixed controllable.

    Most dosers are very low volume feeds. There bigger ones.

    higher volume feeds are available but need controllers to control feeds. Or timers...

    The cheaper less controllable option is a CaRx, if not controlled. Could be better with control. Controler pricey...

    Best most expensive option is a "PROPER DOSING SYSTEM?

    :biggrin:
     
    Last edited: 10 Mar 2015
  16. Nemos Janitor

    Nemos Janitor

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    Above said. You are going to monitor Ca and alkalinity by whatever method you use... right

    So i ask, How are you going to monitor: Ca KH and Mg ?
     
    Last edited: 10 Mar 2015
  17. irie ivan

    irie ivan MASA Contributor

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    Shoe, can we have that in english please captain
     
  18. Francois

    Francois

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    Are you talking about the expensive peristaltic pump way?
     
  19. Nemos Janitor

    Nemos Janitor

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    Regimes of any dosing... Are dangerous without monitoring.. no matter the quantity or size or method.

    When one refers to "dosers" or "CaRx" the size or volume of effluent and strength is important.

    A simple dash of additive weekly might be better.

    To me, i hear that dosers cannot keep up with Ca feed demands. That is not true. The doser is either under specked or programed incorrectly. Same with CaRx, either over set up or too small.

    So to be fare and to to give good advice to the original poster. "Consumption of the tank needs to be assessed and methods of monitoring these parameters need to be clarified.
     
  20. Nemos Janitor

    Nemos Janitor

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    understand.
     
  21. Gavin Barberini

    Gavin Barberini

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    thank you for the guidance I will follow the attached recipe and see how it goes. I also want to buy a ca reactor
     
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