I’m growing Spirulina on a very basic budget and don’t have access to a microscope. I am slightly worried about contamination and it seems others have only been able to tell if their culture is contaminated by seeing foreign bodies through a microscope. What other indicators are there that the culture is contaminated? e.g. colour, pH etc.
And can the majority of contaminants simply be killed by increasing the pH to around 10-11 (by adding more Sodium Bicarbonate)?
This is Madhusudhan,actuqlly iam cultivating 4000 liters of culture and in the beginning the color and pH was nice after some days the colour turned to the lighter green. So can it be fixed for the regeneration so please help me out