PSB Photosynthetic Bacteria 4000ml (2L x 2 bottles) + Culture Medium 50 pcs (Not for consumption)

★ Listing for Mercari

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We are offering 4000ml (2L x 2 bottles) of PSB photosynthetic bacteria, cultured for raising medaka at home, along with 50 culture starters (not for consumption).

This is equivalent to 25 bottles of 500ml PSB (12.5L total), using 2 starter tablets per 500ml.

PSB is managed by the culture start date, so we will provide you with a concentrated, mature culture.

★ The color of PSB varies depending on the culture medium (food), so the color will differ between sellers.
Naturally, it may differ from what you have used before.
Even products from the same manufacturer can vary.
If you are particular about color or are sensitive to it, please refrain from purchasing.

We only provide fully cultured products. If we determine that we only have thin cultures due to insufficient culturing time, we will cancel all listings.

Furthermore, the culturing days are reflected in the price (labor cost) at a minimum, so we cannot offer it at an excessively low price.

★ Quality and Trust > Price

If you require the culturing recipe, please let us know via message.

★ Eco-Mercari delivery (doorstep delivery): For Kanto, Chubu, and Kinki regions (refer to guide → delivery methods). If you can permit receipt, we will include 500ml of PSB or 50 culture starters.
Please check Permit Receipt when purchasing.
If this option does not appear on your transaction screen, it is not applicable.

As this is an anaerobic bacterium, the liquid is filled to the brim without introducing air.

If spilled, it will emit a strong odor, so please avoid opening the lid indoors upon arrival.

Please open it outdoors and adjust the volume.

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