Grow advice wanted

Some advice for a fellow grower:

This is 26 days since it was placed in a sponge from aerogatden. It is almost 7 " tall Support stem appears to have split into 4 or 5 stems. I am using Solar Flare 220 full cycle 18/6 light w/ 4mm of M _ G_B each. Using more distilled water every day.

First timer. White Widow from your stock. Unbelievable to me.

Any recommendations?