Dosing bicarb

Discussion in 'Water Parameters and Additives' started by Tremayn, 9 Jun 2011.

  1. Tremayn

    Tremayn

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    I just dosed half a teaspoon of bicarb and then tested the water 45min later and there was no difference :confused1: .. Must I bake the bicarb first?
     
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  3. Tremayn

    Tremayn Thread Starter

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    anyone?
     
  4. animalia

    animalia

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    I dose once a week, I take 4 x teaspoons in a container and SW mix and slowly add to tank. I repeat untill desired reading is achieved.
     
  5. mariusmeyer

    mariusmeyer

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    If you dont bake it then you need more. 0.5 teaspoons will only raise alk by 0.15dkh in around 500L of water.
     
  6. Tremayn

    Tremayn Thread Starter

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    hey man. How long and at what temp should I bake it? So if I dont bake it then I have to use more? My system is about 660L .. at the moment my alk is at 6.1, using 0.3 per day. I want to take it up to 10. Also got 1kg of kalk, will start dosing that once my alk is up
     
  7. Tremayn

    Tremayn Thread Starter

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    ok using the reef chemistry calc, I need to dose 16.4 teaspoons of bicarb to get my alk from 6.1 to 10. Thats 4 teaspoons to raise alk by 1. So how many spoons should I dose per day?
     
  8. Tremayn

    Tremayn Thread Starter

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    Last edited by a moderator: 26 Nov 2015
  9. SumthingFishy

    SumthingFishy

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    Hi Tremayn

    Bake the evenly spread sodium bicarbonate in oven, for 30 minuntes at 180 degree C, this will then be sodium carbonate. Some guys bake up to an hour, but do it too long and you change the chemistry too much. Add and test until you get the desired result.
     
  10. Tremayn

    Tremayn Thread Starter

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    Ok, I just read that although you need to use less baked bicarb, it has a strong impact on the ph opposed to the "raw" bicarb which has a low impact on ph.. Im going to rather use the raw stuff, safer
     
  11. SumthingFishy

    SumthingFishy

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    Wise choice T.
    If unsure, rather stick with what you know and comfortable with.
    But just for an experiment bake some bicarb and add some in a 5ltr container and test that water. Then try using the "raw" bicarb also in a container and afterwards compare the results. Just remember to dissolve the bicarb first in separate water before adding slowly to water in sump/display tank.
     
  12. mariusmeyer

    mariusmeyer

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    I bake mine at around 200 for 2 hours. I measure and mix with 1L of RO and then slowly drip it into the sump over 2 hours.
     
  13. Tremayn

    Tremayn Thread Starter

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    Yeah I think I should try and bake some.. When you bake it does it make it easier to dissolve? Normal bicarb in the small packets dissolves easy, but this bicarb I got from the pharmacy doesnt dissolve well. It just clumps up then when i stirred it with a spoon it like just floated at the top :confused1:
     
  14. Tremayn

    Tremayn Thread Starter

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    how many teaspoons are safe to add per day? Enough to increase alk by 0.5 or by 1 per day?
     
  15. ADVdiver

    ADVdiver

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    Before you start doing this please tell me what your PH and Calcium levels are
    The Calcium level will also have an effect on your KH
     
  16. Tremayn

    Tremayn Thread Starter

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    calcium at 350, ph :whistling: .. dont have that test kit yet.. I did a lot of water changes and the alk increased up to 7 but its going down by 0.3 per day
     
  17. Tremayn

    Tremayn Thread Starter

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    baking the bicarb :whistling: ..Its pretty useless if it doesn't dissolve
     
  18. ADVdiver

    ADVdiver

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    Try adding some calcium you probably have a demand for it in the aquarium and this is why your KH is dropping. PLEASE GET YOURSELF A PH TEST KIT OR HAVE IT TESTED. The PH, KH and Calcium are all related. If your Calcium level is out A KH buffer will also have less of an effect. By adding the calium you will be raising your KH aswell (because calcium in your tank is a carbonate) KH is Carbonate Hardness
     
  19. Tremayn

    Tremayn Thread Starter

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    I got kalk but didnt touch it yet.. With kalk, you use 1teaspoon per 5gallons, thats 5gal of your system volume right? It doesnt matter how big the top up reservoir is? Mine holds about 30L
     
  20. ADVdiver

    ADVdiver

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    If you don't have a stirrer make yourself a drip I'm sure you will find a thread in the DIY section. 1 teaspoon per 5l of RO shake it up, let it stand for an hour or two and then drip in the clear solution. Gonna take a while to get your calcium up that way but it will get there.

    Disolve the bi carb in RO water and I have never baked it.
     
  21. mariusmeyer

    mariusmeyer

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    Well you have to replace what the tank uses in a day. If the tank uses 0.3dkh the you need to replace it. Some use 1.5 dkh per day and this has to be replaced. Best is to add it multiple times per day if the drop is big. 0.3 can be done over an hour I would say.
     
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