Hi, I found a fertilizer especifically for hidroponic cultures that has a wide gama of chelated micronutrients and K2O, it's the only fertilizer rich in micronutrients I found here in my city, there goes the chart of the product...

Yara Vita - Rexolin CXK
Potassium Oxide - 12%
zinc chelated by EDTA - 4,2%
Fe chelated by EDTA - 3,4%
Mn chelated by EDTA - 3,2%
B - 1,5%
En - 1,5%
Mg - 1,2%
Copper chelated by EDTA - 0,5%
Mb - 0,05%

Now the question, ist it a good or a bad idea to use it in an planted tank?!?
Alone or together with KNO3, K2SO4 and KH2PO4?
Thanks in advance!
(P.S. Sorry for my terrible english!)

It's very high in Zn and low in Fe.
So you may have issues here, the K, and others are not bad at all, just you have very little Fe.

Regards,
Tom barr

Thanks Tom!

BTW, keeping looking for fertilizers.

Check agricultural outlets, resources, friends etc

It can be very cghallenging in some locations, islands, 3rd world countries etc.....
Many in the USA take what they have for granted and assume others have all these services and products easily available.

In the past, many plant related products where not...many old Plant keeps often knew the problem all too well.

So they adapted to what we had locally and could hunt down.

I am from that group of folks.
If it's not available, I'll make it myself.

Which is why I have a lot of experience with many products and items in this hobby

Regards,
Tom Barr