Trying to find an All-in-One fertilizer for my low light Pico
I'm finding it really hard to find an All-in-One fertilizer (macro and micro) for my pico tank. Ideally it would just be a drop or two at a water change each week. The tank is low light with just a few crypts and anubias (both haven't really grown in the last 6 months). I understand that macros and micro nutrients don't play well together, however there seems to be a few available and I like the idea of a high K and relying on the bioload for most of the N&P.
I have found the following options:
1 - Dennerle Nano Daily (really hard to get in Aus but looks to be the best option)
2 - ADA Green Brightly Shade
3 - Do!Aqua Be Green
4 - PPS-PRO (dry separate micros and macros) maybe I could mix these into separate little dropper bottles.
5 - API Leaf Zone and mix it with some dry micros in a dropper bottle
Apart from the Dennerle option, it looks like I'll be buying enough ferts for a Pico tank for 100+ years unfortunately. Does anyone know any other options that come in a small size?
I have tried to search for the above before I asked, however didn't really get any results that helped.
4.5g Planted shrimp tank
5g Planted baby bristlenose tank
70g Planted community tank