This is my 2 inch soil blocker that I used to make the blocks I used to put the 3/4 inch Marigold seedling blocks into.
This is one of my metal shelves. I can fit eight trays on here and fit about 36 of the 2 inch cubes per tray. One of these metal shelves can fit 288 seedlings in the 2 inch size. I also use a surge proctector with a timer to plug all my lights and heat mats into. That way I can program how long I want my lights on. I keep them on for 18 hours a day which is suggested when you are not using grow lights.
These are the two trays with plastic domes that I have on the heat mat to help my seedlings germinate.
Close up of the S hooks and chains I use to hold up the lights. Chains come with the shoplights and the S hooks can be purchased separately.
Here is a close up of a tray with corn, cucumber, watermelon, and cantaloupe a few days after germinating. Notice they don't have their true leaves yet, but you can almost see them coming out of the center on a few of them!
Close up of my 3/4 inch soil blocker (it makes 20 blocks), 2 inch soil blocker (it makes 4 blocks), and the 4 inch blocker. I really havent used the 4 inch blocker that much. By the time the plants are ready to get moved into it I feel like they are ready to be transplanted outside anyway.
Here is a shot of the two trays I use, they are called propgation trays. The one with the holes is what the soil blockers go on and then when I water, exccess water is caught by the solid tray underneath it. I only need this because I am doing all of this in my house with electrical lights and also want to be able to water my plants from underneath once their roots get longer. I also included the two products I mentioned in the podcast, the Bio Live for when you transplant and the root zone for soaking the roots before transplanting. You can also soak seeds in the root zone prior to planting. I did this with my beans, peas, and nasturtium flowers.