BasementChorch Well, this is my first follow-up on this page, I hope to learn since this is my second grow in hydro and I welcome any kind of advice. Here I show 4 seeds that all broke through at the same time, 72 hours since Monday when the system was turned on and the seed was placed in its rock wool. By Wednesday, they were already out of the rock wool, healthy with a nice green color on the cotyledons. As of today, Friday, this is how they look, 5 days into the cycle if I count from the Monday I put the seed in its rock wool, or 3 days into the cycle since the seed came out of its rock wool showing its cotyledons. When do you consider day 1 starts? I will update the nutrients once I get a bit more familiar with the website, cheers and happy smokes! See you next week with another update 🤙🏽