I decided to just put my seeds in little pots I had lying around the house. I layered the soil in three layers. Regular bonsai soil on the bottom, then 1/8 lava/ pummice soil, and finally a little seed starter on the top 1/2" i put two seeds in each pot and will keep the strongest one or transfer one to a pot that didn't get any sprouts. I have the Mikawa seeds marked and separated. I plan on just leaving them in the pots for the year and see what happens. I see everyone is going to transfer seedlings into pots so I thought I would try something different. So right now i have a 65 pots that i plan on having at least 1 tree. Maybe a couple of twin trunks.