The Grow Awards 2026 🏆 
Best line up for 6 autoflower 12l in a 120x120×200 cm
Odin9started grow question 4y ago
I have decided I go for 6 autoflower. How shud I line them up??3+3 in rows. Ore spread them more equally. I'm using a spider farmer sf-4000 dimmable. Plece come whit good advice 😁✌️from a nuby🙈
Solved
Setup. Sensors
likes
Hempy_The_Kidanswered grow question 4y ago
My OCD would keep them all even. So picture 2. Good luck 👍
1 like
Complain
Similar Grow Questions
Solved
Mooncat
EC/PPM Values for SoilI just bought some EC/PPM Meter and cant find some Chart about the right values for growing in Soil...i know how and so on but yeah.Setup. Sensors
Feeding. Other
5y ago
3
Solved
versace_grow
Hi everyone, I would like to ask you how you test Temperature and RH. Do you put your thermometer under the direct light at the base of the plants or inderectly, because I have pretty different values . If I put it under the light my temperature is near 35°C and RH is under 20%Setup. Sensors
6y ago
2
5
Solved
Lala_grows
pH Pen Calibration Frequency?How often should I re-calibrate my PH pen? I have a cheap Milwaukee pH600 and after 3 months of use it had drifted enough to cause real damage (was reading 5.8 when chemical drops read ~4.0). Alternatively, is there a reasonably priced option that would avoid this?Week 12
Setup. Sensors
2y ago
3
3
Solved
Peweez
Connecting 2 SANlight evo 3-100 with AC Infinity Controller 69 PROHi guys,
I want to connect 2x SANlight 3-100 1.5 with AC Infinity Controller 69 PRO. I searched on the internet and found that i'll need this sanlight Trolmaster RJ12 cable and this AC Infinity UIS Type-A RJ11/12 0-10V Dimmer. Do I need this stuff for each lamp or can i combine?Setup. Sensors
Setup. Lighting
10mo ago
2
3
Solved
I_T_C_R_W___GROW
perfekt small grow - what is needed? What a perfekt light needs or should have?What features should a universal Growbox have ?
And what a perfekt light (for a 50x50cm Area in this box ) must have- for seed / settling/grow/& bloom & maintaince like holding a Mother near endless? Can you all help me to build the perfect diy box?2mo ago
1
3
Solved
AirDuster
Help in understanding instrument readings for hydroI'd like to undertand what the importance or significance of these numbers are, and if they indicate issues to resolve:
Hydro - 30 litre reservoir
ph: 5.91 - pretty sure that's in the perfect range for hydro
ppm 1502 - no idea
μS/cm - 3195 - no idea
humidity 41%
Temp: 21 - 36c6y ago
4
4
Solved
NomadGrowDad
Where to measure RH in a grow tent?When measuring RH within a grow tent where is best location hydrometer to record an accurate reading? I have 3 all calibrated together and placed at canopy, between light and canopy, and above light. There is a 20% difference between all three readings. I’m now in flower.Setup. Sensors
5y ago
1
4
Solved
Sang79
Ph of the soilPh of the soil, I checked with this 2 ph meter but I dont know the credibility, if that work.. I see that is around 8.0 but I use water at 6.0ph and soil light mix biobizz, bio grow ,calmag , bio heaven. Are biology shouldn't change the ph.. how is possible? Advise?5y ago
5
Solved
AirDuster
Reducing PPM without changing water in hydroThanks all for guidance on my previous question. As a follow up, can PPM be lowered by reducing feeding until they hit the right range? Currently 1500ppm but seems this is too high. Currently following the AdvancedNutrients plan.Other. General questions
Setup. Sensors
Feeding. Schedule
6y ago
3
4
Solved
Z1984
RH% and temperatureHi guys, got the transplant done today as suggested by Burmese.
I have an issue after transplant:
- My RH doesn't seem to go below 62%
- Is this level bad for the plant?
- What is the optimum RH and Temp for this strain?
- Or average optimum temp and RH in general?
Thank you :)5y ago
1
1
Solved
NCgrower252
Cord for Vivosun Controller to automate an electric heaterI have a Vivosun CFM In-line duct with the Temp/Humidity controller. We’d like to connect an electric heater so that it can automatically come on when the temp is low inside the Tent. Any suggestions to what would be compatible to my Vivosun temp/Hum Controller?3y ago
2
2
Solved
ItalianDesertBalcony
False reading or Hi PH?Is 20% humus lombrico mixed in my substrate giving a false ‘hi’ ph reading? Or is it truly over the max reading? I got one reading of 7 only at the exact second I took the picture, so I made a video. My water is high in calcium, I recently switched to distilled.Setup. Strain - Autoflowering
Setup. Substrates
Setup. Sensors
5mo ago
3
5
Solved
versace_grow
RH 90% during Flowering!I have a problem with RH. I am at the 3rd week of Flowering and I'm struggling to keep my RH down. Today it was 90% when I opened the grow box. I have access only to a window. Is it better to suck air inside or blow the exhausted air out? I can't do bothSetup. Sensors
Setup. Ventilation
6y ago
2
3