Hi there platypusmann, could you help a noob with a simple problem?...
I too am planing to do an ebb and flood grow but how exactly would you flush out the salts in the rockwool if they are surrounded by clay pebbles? Do I just pour tap water over them once or carry on with the feed time but with regular water for a day or two?
Im guessing this is a silly question but I just want to clear things up.
No problem at all.....here is what I do....
Every third res change (I change weekly) I take the plants into the bath tub, then I foliar spray them thoroughly with pH 5.6 water. I then pour 2 quarts Clearex solution (1/2 cup to 5 gal water) over the top of my grow medium (I use rockwool strater plugs placed in 2"rockwool slabs sandwhiched between beds of hydroton in a nursery pot) and let it run through slowly.....this is my way of flushing during the grow.
You can also run the clearex through your res, but I find that way too time consuming for me.
I do my final flush (I start when trichs are 40% cloudy..about 8 weeks) with AN Final Phase for 5 days, using it in my res 2xdaily for 15 mins, and then I run plain water, pH 5.8, with about 3/4 cup of Sweet Leaf in it until the plant is ready to harvest (80/20 cloudy/amber for me).........
I have only 3 harvested grows (one 3 plant harvest (shiva/ice/california orange), one 6 plant harvest (widow), and one 5 plant harvest (northen lights....one was six week stress herm I hashed), with current grows being one 7 1/2 weeks into flower (blue mystic) and 8 fresh seedlings (widow), so I am a noob myself, but I have grown up with growers, and am a gardener by hobby, so I guess I feel like I have a slight idea of what works for me.......everyone likes my buds, and I just got offered 300 for an ounce....I NEVER SELL MY WEED...BAD KARMA....I told the guy that my connection was out....LOL.
Anyway....sorry so long winded...good sativa does that to me....
B