Potassium deficiency

Is light edges on the leaves a sign of Potassium deficiency and if so how do i fix this issue

What does that medium consist of......?

change soilget perlite

Its some organic soil not sure of the name it just started this it been in this soil for almost a month and a half and no issues very lush green now the edges are lightening in color

It can be, but that looks pretty mild. id expect a little more Yellow/white/brown.
Something that looks pretty similar to heat.

if there is a deficiency. I'd dry a banana skin, crush it and sprinkle it on the medium before watering.
But I'd wait on someone to give a positive answer first.

Hope it all works out anyway