• You are viewing the forum as a Guest, please login (you can use your Facebook, Twitter, Google or Microsoft account to login) or register using this link: Log in or Sign Up
  • You can now follow UKAPS on Instagram.

Ei starter kit low in K

Ash6526

New Member
Joined
20 May 2022
Messages
14
Location
Bristol
Sorry if question has been asked previously but can’t find an answer. I purchased the apf Ei starter kit some time back and I’ve just used the IFC calculator (which is awesome btw) and it shows I’m low in K. Is there a preference in which product I buy, either potassium sulphate or potassium chloride? And also does anyone know a place I can buy one of those options now apf has closed?
 

John q

Member
Joined
6 Jan 2021
Messages
1,222
Location
Lancashire
it shows I’m low in K.
Slight curved ball answer: your K levels will probably be working out at about 15ppm, which should be more than enough for most planted tanks.
Admittedly this number is below the levels set out in the ei dosing tutorial but both Tom Barr & Clive will tell you that potassium deficiencies are rare when someone is dosing ei levels of nitrate via KNO3.
 

Ash6526

New Member
Thread starter
Joined
20 May 2022
Messages
14
Location
Bristol
Plus if your using tap water there will be some K in there as well ;)
Yeah I included the reading given on my water report in your IFC calculator. With the salts I have and what’s in my tap water it’s saying I’m at around 64%. Would you say this is enough to start with?
 

Zeus.

Fertz Calc Meister
Joined
1 Oct 2016
Messages
4,590
Location
Yorkshire,UK
My water company report, for example, does not include potassium.
Dont think its a legal requirement - so they dont show it

Sorry if question has been asked previously but can’t find an answer. I purchased the apf Ei starter kit some time back and I’ve just used the IFC calculator

which regime are you using/cloning ? The ppms for the ASPFUK are based on only the three salts in their starter kit (plus trace), which many folk use without an issue. Other option is to get the either potassium sulphate or potassium chloride as you stated already . I went for either potassium sulphate and @Hufsa has already gave you a link for some quality salts
 

Ash6526

New Member
Thread starter
Joined
20 May 2022
Messages
14
Location
Bristol
I cloned EI full. Now i have purchased potassium sulphate all salts show 100% except Ca which shows 120% because of my tap water i assume. Will the extra 20% really affect anything or can i just ignore it? thanks for the help guys.
 

dw1305

Expert
UKAPS Team
Joined
7 Apr 2008
Messages
13,844
Location
nr Bath
Hi all,
Hi @Zeus.

Maybe, maybe not. My water company report, for example, does not include potassium.
There isn't a regulatory limit for potassium (K), so the water company can't be breach of it and aren't obliged to report its level, but if you have plenty of nitrate (NO3-) and phosphate (PO4---) you are likely to have reasonable amount of potassium as well.

Cheers Darrel
 

jaypeecee

Member
Joined
21 Jan 2015
Messages
2,680
Location
Bracknell
There isn't a regulatory limit for potassium (K), so the water company can't be breach of it and aren't obliged to report its level...
Hi @dw1305
Yes, I was aware of the above.
...but if you have plenty of nitrate (NO3-) and phosphate (PO4---) you are likely to have reasonable amount of potassium as well.

They are all simple tests to do, whenever needed.

JPC
 
Top