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Thanks for the input. Yeah I thought the iron levels shouldve been pretty decent. Im going to try foliar feed just a pure iron supp tomorrow at lights on.

Im guessing Iron def. But wanted another couple of opinions first.

Hey guys, just noticed one of my plants has yellowish new growth. Its kind of "patchy" yellow between the leaf veins I think. Also notice the "reverse canoe" the leaf edges are curling down and in slightly. Any ideas? I run RDWC. I let PH drift 5.6 - 6.5 and rarely adjust. I completely change...

Nah. Same water source. So both from my tap, which is town water. The base PPM of my tap water is 130 ppm I have a RO/DI filter which drips about 15 litres an hour. So generally I fill a big 25L drum with RO/DI water (0 ppm) and I mix this with 25 L of straight tap water, because its quicker...

Anyone? I sprayed with Calmag + Iron today as well. Im still learning to read my plants so would be good to have some other input.

Plants are 4 weeks old. The big one is 5 weeks.

Close ups and a pic of my set up for reference

Taking more photos now

Leaves are yellowing/browning from outside edge in as can see from the pic.

Hmm. I see. Well the tips were first to go brown/crinkly. Bottom of leaves are slightly yellowish. Leaf stems are purpling. I use a mix of plain tap water (PPM ~130) with RO/DI water 50/50. This brings my base PPM down to ~60. I feed with DutchMaster GOLD add.27, silica, Grow A + B. I also add a...

What do you guys think? Notice the slightly purple leaf stem too

I was gonna just drill holes in the bottom, fit some tophat gromments, and use barbed elbows/joiners to connect all the buckets up with some poly pipe. The "Out" end of the system will connect to a pump, which pumps the water into my chiller, which then feeds back into the control rez.

I do like the look of your set up, but im not much of a tradie ill be honest, and UC seems like less bits and pieces. I've already bought all the bits for the UC too.... Bro believe it or not it took me like 3 attempts to make my shoddy garden hose waterfall set up thats going right now hahaha...

Read my mind Airwalker thats some voodoo shit right there haha I literally just went and had a look because of that thought, you are right it came up to 5.9 after recirculating through properly. I just added a little bit more of my HCL PH down solution. The whole thing seems to be sitting at 5.6...

I'll give that a go next time. So you reckon adding small amount of nutes to the control tank to "top up" is a no no? Does it throw the balance of the ions out or something?

I just read a few things about phosphoric acid being good for hydroponics. Yeah I read the same thing about hydrochlorics and not to use them, I didnt want to use citric again but incase it fed the algae up, so I figure one little dose wouldn't do much harm until I get my new bottle of PH down...

Ill be honest, since I ran the clean water for 24 hours, cleaned the roots and added my GreatWhite tea into a fresh batch of weak nutes, things are looking not bad....so far. PPM is declining slowly at rate of ~ 40 ppm / per day. PH is rising slowly, only went from 5.8-6.3 in 36 hours Im going...

You're possibly right, it is just your run of the mill cheap anti kink garden hose im using there. I just placed an order with my supply store for all the parts I need to create a new UC-RDWC, with all black fittings, all black flexi hose, and rubber matting for the top of my sites to prevent...

I've been using citric acid for PH down. I just read that this can cause algal blooms. Anyone can confirm or deny this? Thinking about throwing away my PH down and going for phosphoric acid PH down, for obvious reasons.

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