I am growing inside with dirt and the plants come out of the cloner looking great transplant them in happy frog or fox farm and some of the plants get about 10 to 12 inchs high and start turning yellow on top using t5 lights ph is 6.4 after nutrients are added. thanks for any helpfull feed back i have had other people use my water with no problems. i have a wood stove in my shop but it is about 65 to 78 degs