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AC Infinity has a site wide 15% off code. The code is GROWCAST15.

The discount code is GROWCAST. I just used the code on the HLG website to get $109 (20%) off on the Diablo 350. Made the purchase on 10/03/2024. Hope this saves someone some money too.

Thank you for your input. I will try it out tonight.

So I bought Agsil to buffer my RO water while getting the benefit of the silica. Here is what happened when I tried making a gallon of mixed water. 1. First I added only the Agsil to the RO water at .7 grams dry which put the ph up to 10.2 2. According to a post I read by Aquaman I then...

Thanks so much. I will use the rates next watering. I thought a 1/2 tsp Agsil per gallon seemed high.

Correction. When I add 4 ml CalMag I get a ppm of 200 not 300+. Sorry

Just to clarify, my ppm numbers are for the Agsil and CalMag themselves.

So I have searched alot of posts regarding the correct Agsil and CalMag doses per gallon of RO water but see some conflicts with what I am supposed to set each at. I read on buil a soil website that the dosage for Agsil dry is 1/2 tsp per gallon but when I do my base water ppm is 300+. Is this...

I think Agsil sounds like what I would be looking for. Build a soil says to use 1.5 grams per gallon to buffer RO water. An off topic question. If I add RO water buffered with Agsil would I still need to add calmag if it is going into supersoil that already has Dolomite and epsom salt in it?

Thank you for the replies. I find the silicate interesting but have definitely come across numerous warnings about overuse.

LOL

I am pretty much thinking the same thing although I thought a potassium lockout. I am treating for both mag and potassium. Sure hoping one of them works. Just got a 100 gal RO system setup so won't be using the well water for growing anymore.

Definitely feel safe to rule out nitrogen deficiency. Leaves don't turn ALL yellowing including the veins and they aren't dropping off the plant.

I removed the bottom leaves when they got shaded out by the canopy.

There really isn't any bottom leaves left. Just the canopy in.the scrog screen so I guess the bottom and top are the same leaves.

I have had yellowing leaves last grow and the current one. Always happens around week 4 of scrog veg. I have been growing the same way in vic high supersoil for 20+ years without ever a problem. The only thing that has changed is I moved and went from city water to well water. I checked the...

I will be using potassium bicarbonate or potassium silica for ph buffering in RO water. Is one better than the other for what I have in mind? Why would you choose one over the other

No I don't know the make up of the water ppm. I just used a tds meter to get the ppm reading. Whatever is wrong it has caused a nute lockout in the two grows I have tried since using the well water. I have been growing the same way with supersoil for 20+years without any issues at my last...

I am looking for advice on mixing ro water using potassium bicarbonate for ph up and calmag for minerals. The growing medium is Vic High supersoil. I have always used tap water for the last 20 years but just moved and have well water now with 340 ppm. So I am switching to ro water. I have...