Sour Crack Auto

I've had great success using the heating mat and dome with a rockwool cube technique, I just soak it in Ph balanced Distilled water, dump that water after a while and soak it more in the ph balanced water I change the water out until it stays at a good ph for a seed, I do the same with the hydroton clay pebbles with a strainer and bowl. I repeat the ph balanced rinse while stirring until there is no more dirt at the bottom of the bowl, Now transplanted and on a 1/4 strength feeding