Persimmon Leaves - Medaka - 60 pcs - Washed to remove impurities, bacteria, microorganisms, and insect eggs - Fully Dried - No. 253

Persimmon Leaves, Pre-Treated for De-Acclimation. Saltwater treatment for cleaning harmful substances (bacteria, microorganisms, pests, and their eggs) from the surface and back. Fully dried, odorless, pesticide-free, and chemical-fertilizer-free cultivation. For Medaka and turtles. High price due to the labor-intensive treatment.

Images 1 and 2 are examples of this product, taken on October 22, 2025. A bag containing the specified number of persimmon leaves, 8-13 cm in length, and a bonus separate bag with approximately 20 leaves, 6 cm in size, will be included.

Washing and soaking with plain water alone are insufficient to remove harmful substances and bitterness. We recommend this product, which has undergone thorough and simultaneous saltwater treatment and de-acclimation processing to remove harmful substances. If leaves with insufficient de-acclimation are placed in a tank, the water can easily become dirty with bitterness and slime, requiring frequent water changes.

We have received comments such as Beautifully processed, very satisfied and from repeat customers, Since I started using these leaves, the survival rate during winter has increased.

We used persimmon leaves (example, Image 4) harvested from Momiji trees (example, Image 3), which are less brittle even when fully dried. After processing, they were fully dried by sun-drying. They have a strength similar to Japanese paper or leather, making them easy to handle. Compared to wet leaves, they do not deteriorate during transport and storage and remain stable in the tank for a long time.

Saltwater treatment is superior to boiling (which may cause brittleness or leaching of active ingredients) as a cleaning method. Soaking in low-concentration saltwater is not expected to be effective.

A refractometer-type salinity meter (Image 5) was used to accurately measure the salt concentration of the post-treatment solution. For the use of saltwater for surface cleaning, please refer to the explanation by Munihiko Tanaka, Functions and Roles of Salt in Food Processing and Storage, Journal of the Japan Society of the Salt Industry, Vol. 52 (1998) 352.

Procedure
1. Prepare saltwater with the minimum salt concentration required for cleaning harmful substances from the above literature (Image 6) and soak for an appropriate time. Reference (Salt concentration: 3.5% for seawater, 20% saltwater sterilization for persimmon leaf sushi).

2. Remove from the solution, place in a separate container (example, Image 7), and soak in water for de-acclimation and salt removal, leaving for several days. Weighted down with bricks.

3. After the treatment in step 2, transfer to a separate container. Measure the salt concentration of the dirty bitter liquid (example, Image 8) with a salinity meter.

4. Repeat the same treatment while changing the water, and measure the salt concentration of the wastewater. After the salt content becomes zero, and the bitterness has been removed and the water is almost clear (example, Image 9), terminate this treatment, rinse with water several times, and remove (example, Image 10). Finally, sun-dry (example, Image 11).

You can put them directly into your tank and use them with peace of mind.