Someone experienced in fertilizer salts please help me!

Currently I add seachem potassium to my tank along with an all in 1 fertilizer. The liquid seachem potassium is getting to expensive so I want to switch to powder, I’m just trying to figure out the amount to use based on what I use now of the liquid.


HERES INFO ON THE SEACHEM POTASSIUM




HERES INFO ON A DRY POTASSIUM








currently I am using 15ml in my tank right now if the sea chem potassium liquid so I’m wondering how much dry powder I would use to equal the same

EDIT: I am absolutely terrible at doing math so I very much appreciate those who are willing to help me figure this out, without someone’s help I wouldn’t be able to switch to dry fertz.

EDIT #2: what I am trying to figure out is, I have a 50 gallon fish tank that I dose 15ml of seachem potassium, I am wondering how to get the same dosage with using dry potassium salts (above is posted the dosage for the seachem potassium and potassium salt that I want to switch to)

 

I can not help with the calculations you seek, but I have found that buying Seachem in the large bottles cuts the cost dramatically.

The 2 LT bottle is $32.99 US they also have 4 LT bottles.
Your Shopping Cart

 

What you're going to want to do is figure out by weight, not teaspoons (this was my problem when I was doing dry salts). You're going to need a scale that can measure small amounts.
The first question is what ppm are you targeting? For seachem, 5ml increases ppm by 2 in 30 gallons/125L. For pure K2SO4, you would need to add 250 mg to reach the same concentration in the same volume. Mg/L is the same as ppm btw. Look into the rotala butterfly dosing calculator and the different methods of dry dosing to figure out what exactly you want to do.

 

What you're going to want to do is figure out by weight, not teaspoons (this was my problem when I was doing dry salts). You're going to need a scale that can measure small amounts.
The first question is what ppm are you targeting? For seachem, 5ml increases ppm by 2 in 30 gallons/125L. For pure K2SO4, you would need to add 250 mg to reach the same concentration in the same volume. Mg/L is the same as ppm btw. Look into the rotala butterfly dosing calculator and the different methods of dry dosing to figure out what exactly you want to do.

Right now I dose my 55g with 15ml of seachem potassium.
would this
be equal to dosing the 15ml of seachem potassium?

 

No, 15 ml of seachem only adds just over 3 ppm (2 ppm x 3 x (30/55)), 6.96 grams is almost 5 times that

 

No, 15 ml of seachem only adds just over 3 ppm (2 ppm x 3 x (30/55)), 6.96 grams is almost 5 times that

I’m terrible at math. This is why I need help. I have no clue what I’m doing

 

So assuming Seachem gives 3.27ppm in your 50g tank, then you gotta add 3.27/16th teaspoon of the dry ferts

 

So assuming Seachem gives 3.27ppm in your 50g tank, then you gotta add 3.27/16th teaspoon of the dry ferts

How would I convert that to weight of the dry fert?

 

you would need 1.52 g to equal the seachem

 

you would need 1.52 g to equal the seachem

Thanks so much. You really helped me and I appreciate it sooooo much. Figuring this out is going to save me

 

I’m looking into starting to use dry fertilizer salts instead of liquid. Right now I am looking for help regarding switching from seachem potassium liquid to using dry potassium salt. Can someone experienced please send me a message and help me. Thanks so much. I can’t switch without some help, I am terrible with math.

 

I helped w the potassium, are you now looking at converting completely?
If so, what is your tank like, what plants, lighting, CO2 (if any)?
This will dictate how much you should dose

 

I helped w the potassium, are you now looking at converting completely?
If so, what is your tank like, what plants, lighting, CO2 (if any)?
This will dictate how much you should dose

Yes you did help on my other post. I am just looking for more opinion. Not doubting your math or anything, like I said before I’m absolutely terrible at math so I just want to make sure I will be dosing my tank right so I don’t waste anything or mess anything up with my tank. I really really appreciate your help. Just out of curiosity do you use dry salts for fertilizer?

 

I used to use dry salts, but some guys over on ukaps helped me realize that my method with dry dosing w/ teaspoons was probably too inaccurate for what I was trying to do. I didn't feel like buying a scale and got tired of the calculations so I just switched to APT complete. I run a high-tech 20 gallon btw.

 

I used to use dry salts, but some guys over on ukaps helped me realize that my method with dry dosing w/ teaspoons was probably too inaccurate for what I was trying to do. I didn't feel like buying a scale and got tired of the calculations so I just switched to APT complete. I run a high-tech 20 gallon btw.

Can I send you a message? I’m trying to decide which of 2 brands of potassium salts I should use and I can’t figure out the math lol.

 

yea go for it

 

I'm not sure where the teaspoon measurements are too far off for EI dosing. I use the custom dosing spoons sold by nilocg aquatics. They are 3d printed and you can cheaply get whatever you're after. May not be good enough for super targeted dosing, but just fine for ei.

 

Yes they are fine for EI for ballpark concentrations, not for specific ones. I was trying to do an ADA clone w/ them

 

Yes they are fine for EI for ballpark concentrations, not for specific ones. I was trying to do an ADA clone w/ them

Ah. Never had a pretty tank. Not that I don't want one, I'm just not artistic or disciplined enough. Regular old high tech is about all I can muster.