The mixture should be light, seedling mixes are a good choice. My current favorite is a 50-50 mix of Just Right Xtra and Just Right Lite. Add enough water to make a doughlike consistancy, and let set for 1-2 hours. The mix should be able to be pressed into balls and somewhat hold their shape.
Allow the cubes to dry and they will firm up. However, they will always be a bit fragile, and are much easier to break than commercially made cubes.
I received some samples from the good folks over at EP Minerals and EnviroTech Soil Solutions, Inc., who make diatomaceous earth (DE) products. I like and use DE, so it won’t be hard to put them to good use. It Starts with Diatoms Algae are simple aquatic plants which include multi-celled forms such as Kelp […]
I’ve had good luck with Rapid Rooters from General Hydroponics. They are used to start seeds or cuttings. If they dry out before use, you can re-wet them. They work well as long as they are kept moist, but not soggy. Rapid Rooters are single use. Made by General Hydroponics