Potassium dosing options

[LadyTang2]

What are some common and or good ways to dose potassium?

Maybe a k salt that provides the K but doesnt much else in a tank

Maybe a few k salts that provide K and something commonly sought after in a tank ie alk, phos, whatever.

and Maybe a few ways to get K up without dosing a K salt.

 

[Spare time]

I use red sea trace colors. Trace color B contains potasssium and other elements and is dosed 1 ml per 20ml calcium per 25 gallon.

 

[JVU]

I’ve used Potassion from Brightwell. Worked as expected (K increased according to calculations, no problems) and many others have used/liked it too. I don’t really see why one would want to make it more complicated than that if you need to supplement K.

 

[bubblemytip]

Potassium chloride - plenty of chloride in salt water anyway, so best bet if only increasing potassium is the goal. This is likely what the branded supps contain.

Potassium nitrate - will increase nitrate...
Potassium iodide - will increase iodine...

Not sure of a non-salt method - feed plenty of bananas?

 

[YankeeTankee]

I know potassium iodide will, as bubble said, increase iodine to a dangerous level way before its had hardly any effect on K levels. But what about potassium nitrate? Is it as big of a difference or a little closer?

 

[Greg P]

I also prefer this powder as it's dirt-cheap to mix your own.

Brightwell Aquatics - Potassion-P

I make a solution mixing 50grams into 500mls of warmed (microwave 30 seconds) RO water. I tried 100grams but it wouldn't all dissolve - past saturation.
A bunch of math later; to raise K in 100gallons by 20ppm tells me to dose 31mls of my solution.
Once you have the math figured out, it's so much easier dosing a pre-made solution, rather than trying to figure out how many grams of powder to add to your DT