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. 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

Dosing my 300 gallon tank.

Discussion in 'CO2 Enrichment' started by calihawker, Jan 7, 2008.

  1. calihawker

    calihawker Junior Poster

    Joined:
    Jan 7, 2008
    Messages:
    22
    Likes Received:
    0
    Local Time:
    7:19 AM
    I just did my first planting on my 300 gallon tank :D and I am setting up an autodosing/auto water change system. The difficulty with such a large tank is I can only age and heat 50 gallons at a time so my plan is to do a 50 gallon water change every other day. I'm running ~4 wpg with good c02 injection. The water changes still end up being more than 50%/wk but am I going to accumulate excess nitrates/phosphates etc. doing small w/c throughout the week?
     
    #1 calihawker, Jan 7, 2008
  2. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

    Joined:
    Jan 23, 2005
    Messages:
    18,678
    Likes Received:
    681
    Local Time:
    7:19 AM
    You can take a daily % of dilution and plug it into the equation to see(use infinite series):

    See the bottom of this old article:

    Practical PMDD Information

    Regards,
    tom Barr
     
    #2 Tom Barr, Jan 8, 2008
  3. calihawker

    calihawker Junior Poster

    Joined:
    Jan 7, 2008
    Messages:
    22
    Likes Received:
    0
    Local Time:
    7:19 AM
    Thanks Tom
    I completely understand the concept but I think my math skills may be lacking.
    I'll work on it.

    Steve
     
    #3 calihawker, Jan 8, 2008
  4. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

    Joined:
    Jan 23, 2005
    Messages:
    18,678
    Likes Received:
    681
    Local Time:
    7:19 AM
    Take the dose you add daily, and use that.

    50/300= 20% if you account for the tank, rocks etc.

    So what do dose weekly?
    About 25ppm NO3.

    25/7= 3 ppm or so NO3.

    You can dose daily, you can dose 3x a week, or whatever.
    The dilutions will occur about the same as a 50-60% if you do 3x 20% a week I'd say.

    Just a quick guess.

    Why not use a tub for the water or simply add it back slowly so the warmer water and heater can buffer the temps?

    Why do all that for a water change?
    I add dechlorinator and use the hot water to mix with the cold.

    Solves the issue.

    Regards,
    Tom Barr
     
    #4 Tom Barr, Jan 8, 2008
  5. calihawker

    calihawker Junior Poster

    Joined:
    Jan 7, 2008
    Messages:
    22
    Likes Received:
    0
    Local Time:
    7:19 AM
    Thanks Tom. It's all making sense now.

    Steve
     
    #5 calihawker, Jan 9, 2008
  6. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

    Joined:
    Jan 23, 2005
    Messages:
    18,678
    Likes Received:
    681
    Local Time:
    7:19 AM
    Be careful to really look at the issue before deciding you have to limit yourself and do lots of testing, issues with water changes etc.

    The only real work you should be doing: Pruning and keeping up with general care.
    If not, then you need to work towards that direction as time and motivation exist.

    Regards,
    Tom Barr
     
    #6 Tom Barr, Jan 9, 2008
(You must log in or sign up to post here.)
Loading...
Similar Threads - Dosing 300 gallon
  1. Dr.Tran

    Using Ei Dosing For Hydroponics

    Dr.Tran, Mar 24, 2019, in forum: Advanced Strategies and Fertilization
    Replies:
    1
    Views:
    1,235
    toads74
    Mar 25, 2019
  2. rs18alpha

    Iron Capsules In Substrate With Water Column Dosing

    rs18alpha, Jan 23, 2019, in forum: Advanced Strategies and Fertilization
    Replies:
    1
    Views:
    213
    Phishless
    Jan 23, 2019
  3. Anoobies

    Need Help W/ Nutrient Dosing Calculator Result

    Anoobies, Jan 19, 2019, in forum: Aquatic Plant Fertilization
    Replies:
    6
    Views:
    292
    Phishless
    Jan 20, 2019
  4. Farmhand

    El Dosing W/ High Nitrites In Water

    Farmhand, Dec 30, 2018, in forum: Advanced Strategies and Fertilization
    Replies:
    0
    Views:
    182
    Farmhand
    Dec 30, 2018
  5. rs18alpha

    Dosing Extra Iron??

    rs18alpha, Dec 2, 2018, in forum: Aquatic Plant Fertilization
    Replies:
    12
    Views:
    930
    Phishless
    Dec 8, 2018

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice