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Water Chemistry

Home Forums Fresh and Brackish Water Fishes Water Chemistry

This topic contains 5 replies, has 3 voices, and was last updated by  Eyrie 8 years, 5 months ago.

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • #300437

    laney
    Participant

    Hi again,
    being dumb blonde again

    I cant seem to get the water levels in my new tank to settle down.anybody any ideas how to help me please

    #315636

    Plaamoo
    Participant

    QUOTE (laney @ Nov 25 2009, 11:50 AM) < {POST_SNAPBACK}>
    Hi again,
    being dumb blonde again

    I cant seem to get the water levels in my new tank to settle down.anybody any ideas how to help me please

    #315639

    laney
    Participant

    QUOTE (plaamoo @ Nov 25 2009, 11:58 PM) < {POST_SNAPBACK}>
    Hi Laney,
    I think you need to be more specific about your problem and give all the necessary info about your tank for anyone to help. I’m probably not the one to help with this but if you post your tank info hopefully someone will come along. As much of this as you can provide. I’m sure there’s more but here’s a start.

    Tank size?
    How long has it been set up?
    Filter?
    Inhabitants?
    Substrate, rocks, wood, plants?
    PH, Gh, Kh,TDS?
    Ammonia, Nitrite,Nitrate?
    Same tests on your tap water?

    details were posted elsewhere on this group “new pressie” to me equipment i think it was

    anyway

    tank is a all brand new set up its a vision bow fronted 450
    151 x 61 x 64 holds 450litres huge
    filter came with it juwel filter system
    at the moment only homes 6 white clouds and 6 black neons my other fish are on the old tank awaiting their new home
    plants are all types small n large to many to go through and i dint know names anyway
    only have slate rock,marble and think its called sand stone gravel and a finer gravel on top of that

    new tank today
    ammonia is 2.4
    p.h 7
    nitrite 0.3
    nitrate 4

    tap water

    ammonia zero
    p.h 6
    nitrate zero
    nitrite zero

    old tank which is 48 x 12 x 18 and has about forty fish in it

    ammonia zero
    nitrite zero
    nitrate 5
    p.h 5.5

    okay think that answers everything for now

    still needing help please

    #315640

    Eyrie
    Participant

    First thing I would do is an 80% water change to dilute that ammonia reading. Although I am surprised that so few fish could cause such a high reading in 450L. Good news though is that ammonia is less toxic at low pH levels.

    Next thing is to kickstart the filter in the new tank with squeezings from the old filter. This will transfer some of the ammonia- and nitrIte-reducing bacteria you need to cycle the new filter.

    Lastly your pH is very low on both tanks which can inhibit the functioning of the cycle bacteria. Being 30 miles from me it’s safe to say that is because your tap water is very soft and so unable to provide much buffering. A piece of tuffa rock will help raise the kh and keep it stable, or else you can add bicarbonate of soda (as found in the home baking aisle of your local supermarket) to raise it. You’ll need a kh test kit as it’ll need monitored to ensure that it stays about 4-5 since the bicarb method depletes quickly and needs regularly topped up.

    #315641

    laney
    Participant

    ah knew there was a name for that rock! tuffa rock is that the creamy/white coloured porus looking stuff?
    yes i agree dont know why the levels are so high the fish are fine in it ive added a few more tetras to see what happens.
    yes water is very soft and i dont have a kh test
    Think i’ve added bi carb before at one time or another how much do i add again??
    thanks

    #315642

    Eyrie
    Participant

    There’s a helpful link here that will anable you to calculate how much to add.

    http://dataguru.org/misc/freshwater-and-brackish-water-fishes/CalKH.as…p;pHChange=0.00

    But you’ll need a kh test kit first.

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