30% is a bit to high. I used to use a ratio of 1 part castings, 3 parts perlite, 6 parts soil. The mix still felt like it needed more perlite too. You really noticed it when you got to the harvest flushes! I since gave up and went to a soilless mix straight out of the bag.

Be careful transplanting rockwool seedlings into dirt. Ive had issues with the moisture variances between the two mediums (Rockwool holds on to that moisture!) that has caused some transplant shock due to root issues. Just a heads up, it's not detrimental! (All plants recovered nicely )

Good luck!
carinia Reviewed by carinia on . New Grower's First Journal Greetings and hellos all my brothers and sisters. I'm a private user establishing his first indoor grow room for personal use, and this will be my grow journal. At the moment, I have seeds that I ordered online that will be arriving in the next 2 weeks, but I'm also starting this now for input into my setup and suggestions that any of you may have. I'm a scientist by trade, so I'm trying to be as exact as possible when it comes to the technical specifications of my grow area. So far, I have Rating: 5