I must tell you all to pay attention to the quality of trace elements. My long-term problem was a low-quality base of trace elements. Now I am building my own base from chinese chelates and have excellent growth.
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If anyone in this thread is still around here is a question, Can I use Purecal as my main source of N. I can get my ratio to work out much better using that, but Iāll have very little to no NH4+ in my mix. if I need to add a touch of NH4+ to help stabilize the PH during stretch or flower, what the best way or product to use to do that.
Iāve never used PureCal before. I would say it depends what elemental ppm your Ca is at once you hit your target N numbers. I like to use CalPrime myself. You can easily hit your target Ca numbers and still have a little room to play with N such as adding a little NH4 so you have some ammonium in your mix.
Purecal is very similar to Calprime, Calprime has .3 NH4+ where Purecal has 0, so say 170ppm Ca Calprime will have a touch of NH4+ in it ,but total N ppm would be right about same in each. thats why I want purecal for better ratio.
I donāt see how it would be an issue then.
Not thinking it really be an issue more so if the NH4+ helps stabilize the PH, specifically in rockwool during the times of stretch etc, as I know its used for that. Are you still in coco. I donāt look like there is many guys left on here for a couple years ago
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The NH4 does help to stabilize pH. I canāt tell you about rock wool as Iāve never grown in it. Yep, still in coco but also doing a few soil runs for shits and giggles. Yeah, emdub disappeared. I wish I knew what he was up to now.
Hows your coco going, still liking it? were you able to get your brix up in it? and the flavor? I do really good in rookwool but it has a bit of a learning curve, A buddy I know has licence and wants to setup I think 15 or 20 but he doesnāt live right close so Iām not going to be by his side a lot to help. They say coco is easier then rockwool so I was going to point him in that direction, but Iām not really 100% sure if is. so curios to know how your doing in it.
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The cocos doing great. Was able to increase brix a little and improve flavor with the addition of some supplements like aloe Vera juice and Mr. Fulvic. I thought about running a few rock wool cubes or blocks but I water by hand and didnāt want to get into setting up drippers and all that. Howās the flavor running rock wool?
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Yes very happy with flavor, good growth yield etc, but I ran RDWC for along time before rockwool, I thought or was hoping rockwool would grow/produce a little closer to what the RDWC did. thats kinda why I asked about the purecal and NH4, if that could be causing some PH issues in the root zone that Iām not really picking up on. However Iām not running any moisture meters , my watering is dialed in pretty good but its not going to be 100% with out meters. Not 100% sure if my nute ratioās are 100% dialed in yet either , coming from rdwc I did have change them a fair bit. There is a fair bit of a learning curve to rockwool, I donāt think hand watering will cut it, thats why I suggested coco to my buddy .
I would say it is possible to be having a pH issue in the media. I remember when I was running the regular Ca No3 with minimal NH4 once the plants hit about week 5 of 12/12 I was chasing upward pH to no avail. Definitely had some micronutrient lockout. Thatās why I like the CalPrime because you can add a little ammonium sulfate or something to increase your No3:NH4 ratio a bit.
Are you finding the rock wool has different nutrient ratio requirements?
Then my RDWC bucket system, yes