Thanks for reply!
Originally Posted by Seattle_Aquarist
veins or the leaves green and the area between the vein yellowish or are the veins yellow as well.
Not the veins.
outer edge of old leaved the ludwigia becoming yellow/brownish.
And very old bottom leaved become darker green.
I wanted to dose fert but my pocket money don't permit that.
Branded fert like Sechem is totally out of my budget.
Here(in my country) lab grade chemical(KNO3,KH2PO4,K2SO4 etc) available @500gn pack.
And with my little budget I can only afford one chemical only at present.
Tried to find loose but hard luck yet.
And that's why I was asking for only one chem use for dosing in my previous thread.
Though I can afford Rexolin Fe EDTA for iron and already have Rexolin CXK(which have little high Zn I guess).
Can I dose only KNO3 or KH2PO4 with MICROS(Rexolin CXK) ?
Will that make imbalance tank ?
Note: also noticed that old leaved of Hygrophila polysperma become yellowish but new ones are bright light green.