first time grower. me and my wife did a lot research prior to starting or first grow. been a constant learning process with many bumps in the road. today marks end 4th week of flowering after 5wks veg from clones we purchased.
we choose to go hydro using a homemade hybrid DWC with top feed. we use a air stone in each bucket with total gal system 25-28 gallons. we bought nutrients from our local hydro store and choose use Xnutrients line of hydro ferts. we set up in our closet with a fan blowing into room from bedroom a/c at ground lvl and a oscolating fan blowing over top canopy back out the room. this has helped maintain a 78-82f temps in room.
were using a 400w hps about 18" above top coloa's and you can see the 4' and 2' t5s in above pic. we knew without maintaining a water temp below 72f wouldn't be good and found out first hand 2-3 wks into flowering.
leaves started to show signs of a problem upon investigation we found root rot starting and a fungas gnat problem starting from the medium them clones were grown in.
more research and trip local hydro store we got 35% grade H2O2 and employed a cleaning and regular use H2O2 to maintain clean system and add Oxygen to our water. rinsed as much of medium out net pots as we could and plants got happy and everything was back on track. we veg another 2 wks and at 5wks veg plants were all almost 2' tall and we switched over 12/12 with new flowering feeding and every thing was great 2 wks into flowering we cut one clone each plant. last sunday a week after we cut clones our lower fan leaves started drastic changes once again and our fungas gnat prob was getting worst so I purchased misquetio dunks to kill their larve.
fan leaves started to get nasty brown dead patches yellowing and eventually falling off. more and more doing this each and every day past week.
even have leaves on few plants looking like N deficiency but not sure
even a few which look like maybe cal/mag deficiencies
current setup as of complete water change yesterday
6 plants all 2 1/2 - 3' tall
start wk 5 flowering
water temp 78.8f
room temp 79-80f
ph checked evy few hrs maintain 5.8 as much as possible
currently using bloom ,bloom fx, micro nutes, ammonia acids according to their feed chart
bud candy 2ml/gallon
ppm of city water after sitting 24hr 500-550
ppm of nute strength 1500-1600
plz help us save our medicine. roots are healthy in net pots not sure extent any dam in medium
All replies are much appreciated