Ok ..
I believe the thing about nutrients is balance and Redfield ratio.
Once you hit that sweet spot, all inhabitants in your tank will be happy.
For me here is the update below with the experiment i am conducting.
Day 1:
It's there in the video. Where it all started.
I uploaded it in my YT channel.
Day 2:
I saw that the glass with Azithromycin turned pale (middle). I was not able to see any bubbles. While the left (flucanazole) and right (control) glasses showed signs of photosynthesis , producing oxygen bubbles.
Day 3:
Last night I added a drop of a solution of flucanazole (2nd Dose) to the left glass and this morning I saw that the algae in the glass with the flucanazole has turned completely white and is most probably dead.
Left glass is flucanazole (F)
Middle - Azithromycin (A)
Right - Control (C)
CONCLUSION:
So this makes me believe that what I have is actually green hair algae and this thing is covered with cyanobacteria which got affected by Azithromycin. This caused the prevention of photosynthesis in day 2 of the experiment. However in day 3 after the second dose of fluconazole within 12 hours the green hair algae turned white and melted.
I am yet to dose my tank with flucanazole. I will post the results over here once I do so. But before that I will be experimenting more with the chemicals that I have on hand to come to a definite conclusion.