Gorilla Glue - Gavita - Flood & Drain

Room Info • Flower room: 2.4m x 2.4m x 2m • Lights: 4 x Gavita 750w (with Gavita master controller) • Irrigation: IWS Flood & Drain Pro (with custom 25L pots) • Lung Room: Intake air is coming from my lung room. Inside that is all the controllers, intake fan, 350L reservoir tank, a large air conditioner and a 3kw heater • Extras: 2 x 6" RVK Fans with DiffuseAir attachments; Custom MistMaker Humidifier -------------------------------------- Week 1 of flower • Midweek I found fungus gnats hanging around the pots. I pored 2 liters of 0.6% hydrogen peroxide into the top of each plant. Then 2 days later watered in some beneficial nematodes (Steinernema spp.) and topped the pots with a decent layer of GnatNix. Bye bye gnats. • I noticed the EC value drop in the nutrient reservoir. Next week will need to be slightly higher. pH stayed pretty stable. • At the end of flower week 1, I did an under trim of any bud sites that would never make the surface. I do this to stop any fluffy buds from developing underneath. I want big dense buds on top only.

Week 2 and everything is going great so far • They are still being fed twice a day (for 12 minutes) same as last week. • The EC value has been increased this week because midway through last week the nutrient tank reduced in strength, meaning they were drinking slightly more water than nutrients. The aim is to keep the EC value the same as the water level drops throughout the week. • The pH has been increased for this week too. • The only plans for plant manipulation this week is to climb under the canope and pull down any tall bud sites to the same level as the rest. That's it, all trimming and bending is complete. • Midweek foliar spray with BioTabs BoomBoom spray.

Week 3 and I couldn't ask for a better grow so far • Last week I raised the EC value by 0.2 because it was dropping throughout the week. This week I have raised it again because it dropped again. Better to drop than to raise from over feeding. • Gnats have been eradicated. • The first signs of the buds are in development. If anything, there is a little too much stretch causing unwanted internode gaps. I have raised my night temperature to prevent this getting worse. • Started using Shogun Active Sumo Boost at full strength, from now till the end. • Changed to 3 x 12 minute feeds a day, from 2. • Plants are drinking 3.88 liters per day. • Added a product called C-Result midweek. Let's see what it does if anything.

Week 4 and they look amazing • Today (Day 23) I cleaned and calibrated my EC tester (bluelab truncheon) and after mixing the same nutrients as last week the EC was reading 2.8! I was thinking this mixture was coming out at 1.7. Either way the plants are healthy and the EC has not been dropping or rising so I have kept the nutrients the same this week. I will monitor the EC closely through out the week now as 2.8 EC is pretty strong, I might have to dilute the tank, we will see. I will now do tests with the nutrient amounts I used previously and edit the EC leves for the previous weeks. • Second day into week 4 and they have drunk 40L (last week was 35L) of water between them. Thats 4.5L each. The EC level has also dropped to 2.7 from 2.8, so even though it is crazy high they are still taking it. • Midweek and the EC in the tank has risen. I knew it would as it's been set way too high. It was set at 2.8 (by mistake) and it has risen to 3.2. The plants look OK but a little dark. There's no tip burn or anything. I have given them a flush with weak nutrients (1.4 EC). • Midweek and I have noticed a touch of powdery mildew. Caught it really early so I will install a hotbox sulfume. The sulfur will coat the leaves and stop the mildew in its tracks. Watch this space.

Week 5 and they still look great even with the problems there going through. • So towards end of last week I flushed each plant with an EC of 1.4. The run off was coming out at 3.8 (off the scale). They were most certainly being fed way too much and it quickly built up within the pot. They are now being fed a correct and calibrated reading of 1.8. Let's see how they respond to this. • The HotBox sulfur burner is on every other day for 5 hours during the plants night cycle, so I can switch off the ventilation. This should be plenty to cure the powdery mildew that they have. So far it has stopped it spreading. • Canna PK 13/14 has been put in for this week. I believe this strain has a 8/9 week flowering cycle so it should have been in last week but with my overfeeding issues (way out of calibration EC meter) it would have only made things worse.

Week 6 of Flowering • So the strong EC problem has set the bud formation back quite a bit. I believe that the high EC mixed with the buds being slightly too close to the light has cause a lot of foxtailing and openess with the top buds. We have recently been hit with a heatwave so there just about coping. • I have lowered the EC value right down to 1.5 this week. • The powdery mildew has been easy to deal with using the HotBox. I will continue to use it weekly to make sure it doesn't come back.