OgSince03

Hey what sup man!
Sorry to bother but I came a cross a forum about DWC VS EEB AND FLOOD in which you told him to stay DWC and you have tote set ups yourself.
Well I have my 2nd grow going and its DWC tote set up with 6 clone wich I wanna grow in sog style my previous project came to a hault due to root rot it stunt my plant and had to harvest early sadly..and now its starting to happen again!!!:/ so I was wondering if you could please lend me a hand..
I started the 2nd grow with AN nutes. Sensi grow AnB voo doo and b52 temp-65-70 ph-correct according to bottle ppm240 couple days went by and found the brown nlack slime goo w.e soo went to the local shop and was told to try clearx so I did and again everything was right double checked and the next morning I had woken up to the brown black slime again after cleaning the tote and airstones..idk what to do or what else to try any help tips from you pros will be most heplful hahaha thanks

Kingdom Hearts, yay! :3

http://www.rollitup.org/attachments/nutrients/2079562d1332284574t-questions-w-pic-100_3569.jpg
Just got my samples from XNUTRIENTS today and dont really know how to use. So far ive been using Aerogarden nutes, should I flush before I switch? Im 5 weeks from seed right now switched to 12/12 a few days ago. Plan on just using BLOOM and maybe the MICRO. I have the chart of how to mix/dilute. So, if it says "Amount per gallon" do I just fill my res from the gallon I added nutes to? OR, just add the "nute water" to fresh water in res? if so how much? I know not to use full recomended dose right away (plan on 50% abd working up.)
Im growing in Aerogarden 3 res holds about 1200ml of water (about 5 cups)
1 plant
Any help from somebody that knows about nutes would be appreciated.
THANKS