probs with rdwc

sirgalot

New Member
hi to all u stoners
first time grower with yet more problems looking for expert help with honest definate answers.

set up:
2 x rdwc 20 ltr grow buckets ( black )
1 x 20 ltr rdwc res with water pump ( black )
airstones in each bucket and seperate air pumps per bucket
1.2 x 1.2 tent
greenhouse seed company all in one dry powder nutes
third week into flower 12/12
just started adding quarter ml per ltr buddas tree
tent temp 85 to 89
res temp 65 to 75
ph 6
im in rockwool blocks with clay balls for support in my net pots.
roots look ok but very slightly brown but was told that the nutes could be staining them as nutes are brown when mixed in.
i am also running half ml per ltr dutch master zone ( maybe not strong enough)
1 x 600w mh bulb 1 x 250w son t pro bulb
1 x 5" extract inline fan
1 x 4" air inlet fan
2 x circulating fan
my plant is third week in flower ( 12/12 ) and the leaves that are at the top of the stem (near the flower ) are turning brown mainly on three stems. the brown seems to start at the base of the leaf and work its way to the tip i had nute burn on thurs so changed nutes to half strength a day later with the buddas tree.
what is causing this there is no other sign on any of the other leaves ( yet ) or on the lower leaves just the ones surrounding the flower.
should i flush with plain ph` ed water and start again.
would it compromise the grow if i changed to different nutes
please help asap
i am in my third week of flower and just gone up to full strength nutes a week ago but getting nute burn so i have dropped them to half with the buddas tree.
the other thing i have noticed is my ph dropping slowly throughout the week approx 5.8 to 5.3 in seven days
please help asap
kind regards
sirgalot
 
Back
Top Bottom