First Grow - Blueberry OG

Wow it feels like these ladies have exploded in the past week. All the ladies have been topped, and have recovered extremely well. I have decided i no longer want to use CANNA nutrients in my grow, i don't think i'm getting on with them personally and since Dr Repair from Cyco worked so well i thought i'd give them a try :). I'll be feeding them according to the basic feed chart provided by Cyco and will see how it goes, ill also be using their Kleanse once weekly to flush the plants. Apparently i've been needing to do this and havn't, oops. My newest and scariest issue is now humidity, i just can't seem to get it under control, the plants are growing bigger and bushier than i'd thought so humidity has been reaching a whopping 90% during lights out i've added a 12L dehumidifier but it doesn't seem to be doing much so if you have any tips to lower humidity, that would be much appreciated for future reference. I think the two Green Crack Auto's (Pictured two on the bottom right) are starting to flower. I think this may be the last week they are in veg, but im concerned about flipping them before i figure out the humidity issue. We'll see.