Unicorn Glitter RDWC

Don_Solo So, Sundays have traditionally been my start day when counting weeks and Sunday nights is when I do res changes. For this diary, I'm thinking Mondays will be my start day for the new week, but will be mostly focused on what work went in the previous weekend. Why I am I typing this out? I have no idea. All this is just for my reference, anyway. I loaded a new photo from Saturday night to start this week's entry. I know, complete anarchy. I'll try to remember to grab one tonight. Spoiler alert.... they've grown. On Saturday, I mixed up a new, stronger nutrient solution for the seedlings. It's about 3/4 strength, which is the second line on the bag's feed chart. Also, Sat morning I removed the humidity dome completely and just kept an eye on them throughout the day. Didn't seem to phase them in the least. Last night I went to see Atmosphere at First Ave, so no work in the garden. Not that there's much to do right now, just waiting for these seedlings to grow a bit more before I put them in the RDWC system. About two weeks ago, I cleaned out the RDWC system from the last grow. I rinsed everything down and drained the system. Vacuumed the tent, wiped down the walls. I then filled the system with water, added Run Clean at 4 ml/gal, and bleach at 1/3c / 2gal. I let that run for 24hrs, drained it and refilled with plain water with 2ml/gal Run Clean. I let that run for another 24hrs, then I drained and used a shop vac to suck ALL the water out of the lines, PVC tubing, and buckets. Then I let it sit and dry out. I'm not sure when I'm putting my new seedlings in the system, but, I need to have it ready when I decide it's time. I've filled the system with 16 gal of water, with 2ml/gal Run Clean and 0.2 ml/gal bleach. Set up an aquarium heater in the reservoir. With the heater on, res water temp ranges from 64° to 68°. Without it, the room/water temp is around 55°. I'll add nutrients to it in the next couple days. Normally, when the plants are established in the system, I run 15 gal of solution. That gives me a 1.25" air gap between the bottom of the net and the water. With new starts, the water level needs to be a little higher to insure the clay rocks are getting saturated with solution. 16 gal puts the air gap at ~.5" That's all for this update. Thanks for reading. Thursday, 2.5.26 Update. On Tuesday I added full strength nutes to the water circulating in the system. And 10ml Orca for beneficial bacteria. CropSalt recommends using their RunClean product to prevent scale build up. And, it can be used as a pH down when mixing up a new solution. When I was using GH Flora, typically I'd need to use about 60ml of pH Down to hit 6.0 after adding nutes. With the RunClean, I started with 25ml, to see how the solution reacted. It moved the needle, but not a ton. Went from 7.22 to 6.83. So I thought it was safe to go full send and added 35ml more. Big mistake. It dropped to 3.46. I WAY over shot it. Added 10ml pH Up a couple times over the next 30 min to get it to 5.26. I'm used to seeing pH rise just a bit over time, so, I let it sit for a couple days. Thursday evening I selected the two strongest looking seedlings and planted them in the RDWC system. The solution pH had leveled out to 5.8. Water temp is 64° with the aid of an aquarium heater in the reservoir. Air temp in the lung room is around 55° day and night this time of year. RH is 46.9%. In the the tent, with the light on level 4 (250ppfd for these little guys), I'm sitting at 64.1°, 43.8% humidity, and VPD is 1.14kPa. Exhaust fan at level 2. I just now upped the exhaust to 4, might help to bring that VPD down a bit. Lights on an 18/6 schedule. They'll 'sleep' during the afternoon, from 1pm to 7pm. Thanks for reading.