wow in the 2 years I have been learning and helping others on this site I dont think I have ever had anyone contridict everything I have to say and the worst part is most of what I say I learned from some of the top growers on here. /shrug

DH there is always more than 1 way to do things. There is no such thing as exactly right or wrong. I have used h202 in the past along with quite a few peeps on here with no ill effects but honestly about the only thing that is being done is your cleaning the nute stain off the roots. If you are fearing rot then there are quite a few products on the shelf. I was turned onto Hygrozime for that type of problem. Yes the close to perfect temp would be 68 degrees as this is the temp where water will pickup the most oxygen, atleast in my book it is. Plants look real good and your doing real good job fighting that heat problem. Keep it up :thumbsup: