Leptospira culture showing some greenish precipitate. What it could possibly be ?

08 February 2025 0 3K Report

We have started culturing Leptospira and we noticed a greenish precipitate in the inoculum. We still don't have access to a 200X-400X magnification Dark field microscope, but could the precipitate be oxidised iron ?

Some sources say it could be algal contamination. Is that possible ?

We have used 5-Fluro Uracil as antibiotic in the media as well

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