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Little NYC
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  • Brooklyn, NY
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How do I alternate calcium hydroxide with potassium carbonate?

Started this discussion. Last reply by Little NYC Aug 8, 2012. 9 Replies

I've read on Sylvia's blog and other sources that it's a good idea to alternate calcium hydroxide with…Continue

Tags: carbonate, Potassium, hydroxide, Calcium, Ph

 

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Little NYC replied to Little NYC's discussion How do I alternate calcium hydroxide with potassium carbonate?
"Wow, really informative and invaluable stuff! I appreciate the level of detail and follow-up. I'm hoping that I'll have good news to share with you.  Thank you gentlemen!"
Aug 8, 2012
Vlad Jovanovic replied to Little NYC's discussion How do I alternate calcium hydroxide with potassium carbonate?
"I just now saw the picture and the previous posts...that sure looks like one whammy of an Mg deficiency...you can try to correct that with dolomotic lime buffering (probably the better choice since you'll be killing two birds with one stone) or…"
Aug 8, 2012
Vlad Jovanovic replied to Little NYC's discussion How do I alternate calcium hydroxide with potassium carbonate?
"Yeah, correcting a Mg deficiency (interveinal chlorosis on lower leaves) once it occurs is real difficult in my experience...Unlike the relative ease of correcting an Fe deficiency...The potassium becomes much more important when the tomato has set…"
Aug 8, 2012
Chris Carr replied to Little NYC's discussion How do I alternate calcium hydroxide with potassium carbonate?
"Sorry to say you are beyond my experience. The only older leave issues I have dealt with first hand are K and Mg deficiencies. I was hoping you were going to say you didn't add iron but that would be in the newer leaves :P Vlad…"
Aug 8, 2012
Little NYC replied to Little NYC's discussion How do I alternate calcium hydroxide with potassium carbonate?
"Thanks for the table.  The maxi crop I use is just straight seaweed, without any iron.  I do add chelated iron every 3 weeks or so.  My pepper plants are my barometer, since they don't seem otherwise affected by nutrient levels.…"
Aug 8, 2012
Chris Carr replied to Little NYC's discussion How do I alternate calcium hydroxide with potassium carbonate?
"Is the Maxicrop w/ or w/o iron? :) Iron is almost always deficient in all new aquaponics systems and I didn't see you mention adding any. This is a handy chart you may find useful for troubleshooting other…"
Aug 8, 2012
Little NYC replied to Little NYC's discussion How do I alternate calcium hydroxide with potassium carbonate?
"Dear Chris and Vlad, thanks for the pointers!   NYC Water does have erosion deposits of Ca (5mg) and CaCO3 (14mg) but I couldn't say that it's helping me.  My pH drops fairly rapidly.  I have to keep adding ph up every…"
Aug 8, 2012
Vlad Jovanovic replied to Little NYC's discussion How do I alternate calcium hydroxide with potassium carbonate?
"I agree with Chris in that you can probably forgo the potassium hydroxide (KOH) and just use the bi-carbonate form (KHCO3) it is not as strong as the potassium carbonate (K2CO3) but may be easier and cheaper to acquire. it also doubles as a fish…"
Aug 7, 2012
Chris Carr replied to Little NYC's discussion How do I alternate calcium hydroxide with potassium carbonate?
"Someone more experience can answer the best quantity to start with better than I can but it will depend. You will want to likely pre-dissolve it in your top-up water and you want to be sure you do not swing your pH by more than 0.1…"
Aug 7, 2012
Little NYC posted a discussion

How do I alternate calcium hydroxide with potassium carbonate?

I've read on Sylvia's blog and other sources that it's a good idea to alternate calcium hydroxide with potassium carbonate (or hydroxide) to buffer up ph and add nutrients. I'm hoping that someone can help answer the following questions:- Is there a particular food or scientific grade that is most suitable to use with fish?- What quantity should I use per 100G? My tank is about 140G and my gravel growbed…See More
Aug 7, 2012
Little NYC commented on Little NYC's blog post NYC Greenhouse challenges
"Hi Lynda, Thanks for your comment. I just checked out your Facebook page, and what an impressive amount of space you have! I can easily move my fish since I only have about 20 fingerlings, the largest of which is 3". I added an exhaust fan to…"
Aug 5, 2012
Lynda commented on Little NYC's blog post NYC Greenhouse challenges
"We hear you... Aquaponics in NC, on facebook... yes.. the bugs, the slow growth.. the dont feed, feed issues.. the first 90 days, were interesting... we started with gold fish, and bass... they both have held up well in the temps.. since fish like…"
Aug 5, 2012
Little NYC posted a blog post

NYC Greenhouse challenges

Here we are a couple months into the Summer, and I figure I'd give you all an update on my greenhouse.NYC greenhouse booty:- 10 skinny salad heads- 1 huge bunch of rapini- 3 sweet pea pods (I'll explain later)- 3 large mortgage lifter tomatoes (2lbs)- 3 jalapeño (2oz)- 2 red corno di toro peppers (3oz)Challenges:My system has…See More
Aug 4, 2012
Amy Allis commented on Little NYC's blog post NYC Greenhouse
"Hello out in NYC --  I like it -- looks like a great use of limited space... and I like the movie-shoot leftovers for materials. Curious what kind of fish you are considering with your wide swing of temps out there? Looking fwd to more…"
Jun 20, 2012
Little NYC commented on Little NYC's blog post NYC Greenhouse
"Thanks! Creativity makes this process all the more fun!"
May 29, 2012
Japan Aquaponics - アクアポニックス 日本 liked Little NYC's blog post NYC Greenhouse
May 29, 2012

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Search engine (Google)
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aquaponics
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Yes
If so, what type of system? (pick all that apply)
flood and drain media
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Less than 6 months
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Tilapia
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140 gallons
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I love eggplant

Little NYC's Blog

NYC Greenhouse challenges

Posted on August 4, 2012 at 9:06am 2 Comments

Here we are a couple months into the Summer, and I figure I'd give you all an update on my greenhouse.

NYC greenhouse booty:

- 10 skinny salad heads

- 1 huge bunch of rapini

- 3 sweet pea pods (I'll explain later)

- 3 large mortgage lifter tomatoes…

Continue

NYC Greenhouse

Posted on May 28, 2012 at 10:52am 3 Comments

Some people have a hard time wrapping their head around what a NYC backyard might look like. So I figured I'd cover mine.  

 

The most common backyard is made of concrete for three main reasons: (1) many have driveways leading to a backyard garage, (2) to have a place to put one's picnic…

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NYC Water quality

Posted on May 22, 2012 at 11:40am 0 Comments

I just contacted New York City's DEP to inquire about water quality. I'm told that chlorine gas is used for disinfection in NYC drinking water as opposed to chloramines, and that water treatment is the same in all 5 boroughs.



I plan to use a chlorine/chloramine remover to treat my water when I don't have time to gas it. However, DO make sure that you use one that's approved for human consumption of fish, such as Cloram-X. I bought an API product at Petland Discount, which is intended… Continue

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At 10:36pm on April 8, 2012, Sylvia Bernstein said…

Welcome Alisa,

Thanks for joining the Aquaponic Gardening community!  I hope you find it a fun place to explore aquaponics.  There is a real blend of experienced and new aquapons in this community, so please don’t hesitate to get in there and start asking questions.  Everyone is quite happy to help out new members – no question is too basic.

A great place to start is to read the “How to Use This Site” link on the upper right corner, “Start Here” section of the Home page.  You might also find the “Aquaponic Gardening Rules of Thumb” guidelines helpful.

Please add a profile image, participate and check in with us every day!  We are constantly posting news about aquaponics and the good food movement.

Thanks again for joining us, and I look forward to getting to know you.

Sylvia

 
 
 

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