Aquarium Chemistry Question? Ask the Doctor!

Discussion in 'Reef Chemistry by Randy Holmes-Farley' started by revhtree, Mar 22, 2016.

  1. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Expert Contributor Article Contributor

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  2. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Expert Contributor Article Contributor

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    That is normal. Photosynthesis consumes CO2 during the day, raising pH.
    Respiration is constantly adding CO2, and at night it predominates, reducing pH.
     
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  3. revhtree

    revhtree Owner Administrator Staff Member Team R2R R2R Supporter R2R Excellence Award Photo of the Month Award Build Thread Contributor Article Contributor Partner Member 2018

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    Thanks Randy for taking care of our sick tanks! HA!
     
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  4. drernesto

    drernesto Well-Known Member

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    He should take care of our sick addiction to our tanks too
     
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  5. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Expert Contributor Article Contributor

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    That's a lot harder. lol
     
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  6. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Expert Contributor Article Contributor

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    That's a lot harder. lol
     
  7. JadeM

    JadeM Well-Known Member

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    how do you raise your ph using bicarb soda? thanks
     
  8. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Expert Contributor Article Contributor

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    You don't. It will reduce pH slightly, and will boost alkalinity.

    I address pH issues and how to correct them here:

    pH and the Reef Aquarium - REEFEDITION
    http://www.reefedition.com/ph-and-the-reef-aquarium/
     
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  9. andys

    andys Well-Known Member

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    Hi

    Is it possible to test the strength of freshly made alk solution
     
  10. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Expert Contributor Article Contributor

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    Yes, but it is very high and will need dilution. What did you make?
     
  11. andys

    andys Well-Known Member

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    well my issue is i used a half cup measuring cup and i think i may have put 5 half cups in when it only calls for 4. sorry does that make sense
     
  12. RadagastWizard

    RadagastWizard New Member

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    Hello Mr. Farley I have a question regarding going to college for biology, more specifically fisheries or biotechnology and I'm wondering what the outlook is and if you have any advice.

    Also, can you get a job outside of the area you went to college?

    Thanks,
    Luke
     
  13. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Expert Contributor Article Contributor

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    Sorry, I'm not really familiar with the job prospects in that area. Most of my professional experience is in pharmaceutical discovery.
     
  14. Baker91

    Baker91 Active Member

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    Hi randy. I'm needing help with some mag. I have mag crystals but I don't understand your diy. And the brs calculator isn't helpful either. can I use just magnesium chloride or do I need something else?
     
  15. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Expert Contributor Article Contributor

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    What else are you dosing?
     
  16. Baker91

    Baker91 Active Member

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    Sorry I took so long to reply I'm dosing calcium and need to dose mag. I made your two part do I need to use the bra calculator to figure out my dose? I also got my daily dosing chart form one of your articles. Just need help with the first dose to raise it up to my target level
     
  17. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Expert Contributor Article Contributor

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  18. mps026

    mps026 Well-Known Member

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    Hi randy, for the longest time my tank needed the same amount of calcium and alk. I recently changed my light and it seems everything has been thrown off with me having to cut back dramatically on dosing both. Is this normal as the corals adjust to a new light?
     
  19. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Expert Contributor Article Contributor

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    Lighting changes can take some time to adjust to. Light can also be too bright for some corals.
     
  20. chomoney

    chomoney Well-Known Member

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    My dumb question:

    If I am running an air pump/air stone in a room with high C02 levels, is the air stone simply pumping the C02 laden air into the tank? Or does the air pump/stone still somehow displace C02 within the tank?

    My assumption is that it is putting C02 laden air into the water since the air pump has no method of scrubbing the C02, but hoping someone more knowledgeable than me can confirm.

    Thanks!
     
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