Hi,
Here is my first hydro grow. Box 120x120x200, first lamp was 400W and now 600W 96000lumens. I have now periode 5th day 12/12 hours. Medium rockwool, water system 800l/h, air pump 400l/h, 90l water tank. EC 1.1; pH 5.8-6, periode of watering one minute at 6am, 10am, 2pm, 8pm and 12pm.
All Is going great, but one think is, than one line of flowers grow slower than others, when I will have some time, I send some detail photos. Maybe IT can be problem with some green s**IT on rockwool from top “water algae”? Maybe they relase something to root system in all lane… I dont know, today I will buy, aluminium foil And cover rockwool cubes from top … Here Is few pictures:
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That grow looks so good . Good luck… Mechelle x
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Hi, 21th day of flower, looks better And better… I love hydro … once per four days just add few buckets water, nutrions And once per 10 days big water tank desinfection.
EC now 1.4 and pH 6,1 +/-0,2
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Looking good I would lower the ph to around 5,8 - 6,0. Works best for me But I would raise the nutriwnts for sure. You can se your plants are yellow down the middle. I feed them with Ec around 1900 at this point 
Keep growing!
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pH lower yes, but about EC I saw best Is maximum 1.6-1.7 … this mens get around and over 1g/W but THX I try lower pH
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