Potassium source

[zappa]

What is the best Potassium source, KCl or the K2SO4 ? and why?

I have enough N...so KNO3 is not a option

 

[Gerryd]

Not sure which is 'better' but I use the K2S04 with no issues.....Have not used the other.

 

[zappa]

Probably youre right "seachem" use the same...
Still im corius to know if someone can tell the differences