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Sorry only 1 question. I`m getting a sun super agro 270 watt HPS bulb and i need to know if i change from my current standard bulb, will it shock my plants, it has a 30% higher blue spectrum.:joint::mrgreen: Super Agro 270W HPS Mogul Base Grow Bulb - Plantlighting Hydroponics

Can i use a MH bulb in a HPS fixture and ballast? I have a conversion bulb but i think it died this morning.:joint::peace::joint:

I just planted KC-36 seeds that popped, all ten of them yesterday in 1 quart plastic containers ( the kind used for soup in chineese restaraunts) with soil that has nutes in it of 0.14 - 0.21 - 0.14. Will that hurt the baby seeds? And should i cover them with a clear plastic tops,and do i...