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Using Biobizz allmix, grow, bloom and topmax. this is SUPPOSED to be a complete system. however, both my first grows, growing different strains, i have had serious deficiencies, primarily, i believe a K deficiency during mid flowering. hard to believe the problem is just the nutes. what could i...

baking soda worked for me. i gave the buds a gentle blow dry afterwards :)

c'mon folks help a fellow grower out!

I've read that you need not vent at night. Is this ture? Don't plants still respire at night and therefore need oxygen? I ask this because I have high RH and my only real option for controlling it would be to run a dehumidifier at night and not vent (or maybe vent a lot less). I have an RVK100...

no i'm venting into the house but it's a small tent venting into quite a big space. i don't really have the option of venting outside atm.

no the tent is inside the house. the air outside is even more humid. edit: i am venting during lights out too. RH is higher then cos temps are lower. i suppose one option would not to vent and to run the dehumidifier during lights out?

i have an rvk100 and a tiny tent (3x3x6 foot). with that amount of air being pulled through i'm not sure how much of an impact a dehumidifier would have.

RH is pretty high here in London and I got problems with bud rot. I'm soon to start my second grow and I'm looking for a rot resitant strain which finishes fast and packs a good hit. My initial thoughts are either Barney's Crimea Blue, G13 Blueberry gum, Delicious Northern Lights Blue or...

alright folks thx for help.

I'm about half way through flower and I must have knocked the timer without realising and left lights on 7am-3.30am :o (usually 7-7). How long should I leave them off to make sure they get back to flowering ASAP?

hi this directed at me?

alright thx all for the advice final pots are only two gallons so might try this.

For indoor soil, to avoid having to transplant. Any cons to this?

alright thanks a lot for your help. i will have a look, got a pH meter arriving in the next couple of days i've been using indicator solution but i find it pretty hard to match the colour to the chart could be 6.1 or 6.9 i can't really tell must be part colour blind lol.

im about 5 weeks into flowering. older growth, fan leaves in the middle of the plant. no blacks specs underneath, just checked. this is my first grow, soil under 250W HPS in a 2x2 foot tent. might be the pH, i haven't been very careful about it.

what's up with my plants?

if it's something big that's good cos it must be gone since i put them indoors i can't see anything. thanks i'll use the neem oil if spreads any further.

Thanks. Well it's inside now, and i can't see ANYTHING moving on it. I'm assuming something that could take such big chunks out would be easily visible to the naked eye? I'm not sure if it's getting worse or not....also can I spray with neem after the buds have started showing or is it going...

Everything was going fine until I noticed some of the leaves on one of my plants was looking like this: the plants were outside on my terrace till a few days ago. damage was getting worse, it has got to some of the buds as well. i can't see anything on the plant - i'd expect something quite...