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Started pumping AC'd air into the res 2 hours ago. Water temp is already down from 71.7 to 68.5.

Yeah, appreciate the input. Single plant grows like this are probably not super interesting to most folks. :sleep: That makes sense about more established plants in an environment with beneficial bacteria being able to handle higher temps. I'm still just kind of paranoid with all my roots...

I picked up a Coolworks IceProbe for $100 a few weeks ago. It dropped the temp in my 18 gallon setup by 3 degrees farenheit. The trick is the main res needs to be well insulated for it to work...

Thanks! I'm hoping to end up with the tops of the plant 12 to 18 inches from the light. As you can see from the wide angle, she's still got some room left. Thinking about switching when the tops are parallel with the top of the Bluelab monitor. This plant is super thirsty. My top up meter is...

Thanks for the input. Took your advice on the defoliation and tie down. I also came up with a way to raise the light up another 8 inches. Probably let it grow one more week then switch to flower.

Some small rust colored spots are starting to appear on a few of the older leaves. Calcium deficiency? It might be time to boost the ppm up a bit. Fortunately my big jug of Calimagic arrived today. Also got some Armor Si and a 960gph air pump. Still growing like mad. I'll have to switch to...

Thank you! Yes, the hydroguard and lower temps are keeping the roots happy. The ppm is at 600 with equal parts of the GH trio. I'm using tap water run through a chlorine/cloramine filter which has a starting ppm of 130.

The rate of growth in DWC is nuts! It grew like 3 inches overnight. Since it's starting to touch the wall, I'll be moving it to the center of res tomorrow. Also got a pulley so I can adjust the height of the light.

Also, I realized last night that storing my big bottle of PH Up right next to my nutes is very a bad idea. 30ml of acid was not what I wanted to add. Nor did I want to flush the system three times in a week. :roll: You can see from the pic that the new growth is curling a bit - probably from all...

I'm just using an old Samsung S5 phone with this app. https://play.google.com/store/apps/details?id=com.pas.webcam&hl=en_US I mounted a small aluminium heat sink and computer fan to the back of the phone to stop it from overheating and shutting down. I also installed a dedicated wireless...

Nice setup. And good sized plants for only 4 weeks!

You bet.

Alight guys - I've got a question on Epsom salt. How much of this shit do I need to add? I've read over and over and over that 1 tablespoon per gallon is the recommended amount to add for DWC. My gut said this was too much but I added it anyway. Goddammit! My PPM shot from 580 to 1290. Planning...

Definitely looked into it. But the rational voice in my head seems to think it would be overkill. :D Not to mention my CO2 levels are already around 800 ppm.

Yep, 2.6 degrees cooler after putting tinfoil on the lid. Saved me $50 and some unnecessary work.

That's a damn good idea. Thanks!

Bushing up nicely. I added 30ml of hydroguard with the nute flush two days ago. The res temp is fluctuating between 67 and 71. To get it a few degrees cooler I'm replacing the 15 gallon tote with an igloo cooler for the external res. Other than that, just letting it grow before switching to...

Yeah, every time she leaves I shoot under the house to get some work done. :) Here's a pic from this morning. I finished up the manifold on Monday and the 8 growth tips are exploding. The plant started showing signs of phosphorus deficiency (pink stems, bluish leaves with brown spots on the...

48 hours later... You can almost see it growing.

Well, 10 days running on autopilot and she's still alive. PH is rising slowly to 6.2 then dropping down to 5.8 every 5 days thanks to the dosing pump and PH controller. Outdoor temps have been near 100 but the res temp is holding steady around 72. Air temp in the tent is between 78 and 85. A...