okay so I am a major plant nerd but my seedlings are sprouting!!!!day temp 65+ pm 55-57 in the GH questions:1-I have the sprouting trays with the domes in my GH. some of my seedlings are up but not all of them in the same tray.(this tray has heat mat under) Do I keep dome on off?? How often do I water in the tray with the dome??Is humidity my friend or foe? What is opion on black gold. i personally hate teh stuff it is full of slivers and I thought of it as cheap. Now though my local garden store is carrying it and I have seen it in other reputable places. So what is any ones take. Is it any good for plants ,seedlings????