Alright we pretty much have the final setup ready but I just want to check and make sure this isn't going to be too much on the plants to start. We have the four CFL lights listed above and just purchased this HPS system https://www.futuregarden.com/cgi-bin/shop/30-3115.html is it safe to have all this lighting(498watts) on the plants from start to finish? We plan on going 24/7 for the first 3 weeks and swtiching over to 12/12 after that (how long will it typically be from there?). As far as soil goes do you guys have any brand suggestions, I read there is no need to add fertalizer to the mix till after about 3 weeks since the soil itself will contain a sufficient amount for the small plant. What about water though, is room temperature Poland Spring alright to be feeding these plants? I know the pH should be between 6.5-7.0 but I wouldn't trust the tap.

Sorry for all the questions just wanna make this go as smoothly as possible.

Thanks Again!