Blue Dream Auto? Photoperiod? ¯\_(ツ)_/¯

@CRiSPrGrow, I made a little tent controller for myself. I used a plastic box that they sell at the hardware store for like electrical connections and stuff. Inside there's an Arduino that just monitors the sensors I attached. I have a sensor that tells me the tent's overall humidity and temperature. Then I have a sensor in each bucket to monitor the temps. I got too lazy to add pH and stuff, but it's been super helpful knowing when the temps in my reservoirs go above 68. Now that it's winter in Chicago though, I'm having a hard time getting my tent up to 70 degrees F! But, I have LEDs in the box that go red or green depending on if I'm within my specs. It's helpful just as an indicator if I have to do something or not. I can glance from 30ft away and know if everything's all good 👍 Arduinos are only like $15, and sensors are like 5 for $10. You can buy pH meters and stuff, too, but they're like $50 a piece.

@@Chi_Town_White_Boy, very nice i like that display man , thinking about doing this, crazy about the PH sensors' price, any way to get that down? i tried my own sensors, but the "in soil EC" measurement is a bit tenuous.

@CRiSPrGrow, the display is made by Nextion. There are plenty of samples of coding and it’s pretty customizable - touch screen let’s you make different information screens. Regarding the pH meters, I know there are two kinds - one that can stay submerged and one that can’t. The submerged type is more pricey. The only thing I could think of to reduce to price would be to setup a big, shared reservoir system. I never did that because I like growing various strains, but if you only had one batch to monitor then it’d be easier and cheaper to maintain, I think.

@nix_nix, Good catch! I should probably be more accurate with my nutrients. I basically follow the recommended portions -- so I'm more or less providing the Advanced Nutrient's schedule. What I mean to say is that I use double for Bloom/Grow than I use for everything else. Typically, I use 3 gallons of water for my nutrient mix. That's usually more than enough to cover my 7.5" line I use as a reference for top water level (once roots have reached it, of course). So, here's what I do for a 3 gallon mix: 20ml of grow/bloom. 10ml of everything else. That's total for 3 gallons of RO water. Depending on what week you're on -- some weeks in AN's schedule include more nutrients than others, which will naturally increase the PPMs. Generally, though, this 20ml base and 10ml everything else (per 3 gal) gets me around 650ppm. I usually will add a bit more RO water to it and mix it up to get it down to the level I want. So it'll take another quarter - to - half gallon to get me down to about 550ppm. On the other side, if I'm changing two plants at the same time -- let's say they're in the veg state together (AN schedule doesn't change much during veg), then I might add two gallons to that 3 gallon mix and bring it down to something like 300ppm, which is usually good for plants that are 2-4 weeks old. So, you're right -- I should be more transparent about my data so that others can learn from my mistakes. Hope this clears that up. I maintain AN's proportions, but then water it down. You can cut the 20/10 ml in half to 10/5 ml and get around 300-400ppm, too. Play around with the numbers, but 600ppm is usually pretty hot for most autoflower strains. My goal here is to reduce the amount of wasted expensive nutrients. Great questions!

@@Chi_Town_White_Boy, love <3

@BigDaddyK, wow! What an awesome idea and tip! Do you leave it 20/4 just to get it to recover faster or go 20/4 the entire length of grow? Thanks for sharing!!