This site is supported by the advertisements on it, please disable your AdBlocker so we can continue to provide you with the quality content you expect.
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. We are after as many aquarium plant images that we can get, doing so will assist us in completing the aquarium plant database.

    https://barrreport.com/threads/aquatic-plant-images-wanted.14374/
    Dismiss Notice
Cookies Aquarium Plant Images Wanted

Kno3

Discussion in 'Are you new to aquatic plants? Start here' started by steve todd, Apr 9, 2018.

  1. steve todd

    steve todd Member

    Joined:
    Dec 15, 2017
    Messages:
    70
    Likes Received:
    3
    Local Time:
    5:50 PM
    after using. Rotala calculator

    I. Mixed 600ml water to 330 gm of kno3
    It doesn’t all disolve
     
    #1 steve todd, Apr 9, 2018
  2. Allwissend

    Allwissend Article Editor
    Staff Member Lifetime Member Article Editor

    Joined:
    Jun 20, 2016
    Messages:
    323
    Likes Received:
    191
    Local Time:
    9:50 AM
    Please consult chemistry websites or Wikipedia for maximum solubility of compounds. Also be aware that the solubility of one compound will be influenced by the other compounds added to the water, pH and temperature.

    The maximum solubility for KNO3 is 316g/L at room temperature, so you will need to double/triple your total volume to be able to dissolve all the salt.

    Hope this helps.
     
    #2 Allwissend, Apr 9, 2018
  3. steve todd

    steve todd Member

    Joined:
    Dec 15, 2017
    Messages:
    70
    Likes Received:
    3
    Local Time:
    5:50 PM
    Thanks I made new solution for lowlightweekly
    200ml to 55 g. Kn03 Dosing 40ml weekly,will give me 10ppm of n03
    This will last 5 weeks

    Cheers
     
    #3 steve todd, Apr 9, 2018
    Last edited: Apr 9, 2018
  4. Julia Adkins

    Julia Adkins aquariumfertilizer.com
    Lifetime Member

    Joined:
    Jun 22, 2015
    Messages:
    137
    Likes Received:
    35
    Local Time:
    8:50 AM
    Solubility depends in part on the form that your potassium nitrate comes in. Some is intended for being mixed in soil and is less soluble than others. You need a specifically water soluble form. Any solute has a saturation level and usually will only reach partial saturation unless the temperature of the water is increased.
     
    #4 Julia Adkins, Apr 9, 2018
  5. Allwissend

    Allwissend Article Editor
    Staff Member Lifetime Member Article Editor

    Joined:
    Jun 20, 2016
    Messages:
    323
    Likes Received:
    191
    Local Time:
    9:50 AM
    Hi @Julia Adkins, what do you mean by forms of KNO3 ? Which ones would be more soluble ? Do you refer to purity of the salt or other sources of N ?

    To my knowledge, potassium nitrate is KNO3 as described here:
    https://pubchem.ncbi.nlm.nih.gov/compound/potassium_nitrate#section=2D-Structure

    This is for the 670L aquarium ? This is correct. Just to double check, the total volume of the solution is 200mL or ? So you add enough water over the 55g KNO3 to get 200mL solution.
     
    #5 Allwissend, Apr 9, 2018
    Last edited: Apr 9, 2018
  6. steve todd

    steve todd Member

    Joined:
    Dec 15, 2017
    Messages:
    70
    Likes Received:
    3
    Local Time:
    5:50 PM
    Yes for the 670l with anubais and discus. I used the Rotala calculator, lowlight weekly make a solution using 200ml and dosing 40ml weekly it said to use 55g KNO3,I then made 200ml solutions of p04,amgrow trace mix both dosing 40ml weekly
    I

    cheers
     
    #6 steve todd, Apr 9, 2018
    Allwissend likes this.
  7. Julia Adkins

    Julia Adkins aquariumfertilizer.com
    Lifetime Member

    Joined:
    Jun 22, 2015
    Messages:
    137
    Likes Received:
    35
    Local Time:
    8:50 AM
    Allwissend, by form I mean whether it comes in a grade like flour or like granulated sugar. The chemical compound is the same, KNO3. The flour like product is not very "drop in water soluble". It works better when mixed in soil. Of course, it is the water that falls on the ground that allows it to become available to the plant roots. But it does not work well to make a solution or to use dry to dose a tank.
     
    #7 Julia Adkins, Apr 16, 2018 at 12:56 PM
  8. Allwissend

    Allwissend Article Editor
    Staff Member Lifetime Member Article Editor

    Joined:
    Jun 20, 2016
    Messages:
    323
    Likes Received:
    191
    Local Time:
    9:50 AM
    Hi, that clarifies it.

    With the very fine grade powders, it helps if you avoid the formation of "clumps". Mix well immediately after adding to the bottle of add at the filter outflow if dry dosing. Even when clumps get formed, if the solution is not saturated, KNO3 is easily dissolved in warmer water. Nothing like K2SO4 or CaSO4*2H2O, whatever grade ;)
     
    #8 Allwissend, Apr 16, 2018 at 2:56 PM
(You must log in or sign up to post here.)
Loading...
Similar Threads - Kno3
  1. gary

    Kno3 Potassium Nitrate

    gary, Feb 28, 2018, in forum: Advanced Strategies and Fertilization
    Replies:
    8
    Views:
    536
    Allwissend
    Apr 16, 2018 at 2:49 PM
  2. rs18alpha

    Can the KNO3 and KH2PO4 be mixed together for E.I. Dosing??

    rs18alpha, Oct 14, 2017, in forum: Aquatic Plant Fertilization
    Replies:
    5
    Views:
    493
    rs18alpha
    Oct 14, 2017
  3. kleb

    Need help with KNO3

    kleb, Aug 15, 2016, in forum: Aquatic Plant Fertilization
    Replies:
    6
    Views:
    108
    kleb
    Sep 12, 2016
  4. NanoPlantGuy

    KNO3 (mis)measurement

    NanoPlantGuy, Apr 4, 2015, in forum: Aquatic Plant Fertilization
    Replies:
    12
    Views:
    133
    NanoPlantGuy
    Apr 5, 2015
  5. Whiskey

    Need to dose KNO3 like a 120G tank, should I up Traces as well?

    Whiskey, Jan 3, 2014, in forum: General Plant Topics
    Replies:
    1
    Views:
    87
    BigFlusher
    Jan 3, 2014

Share This Page