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Gee64
Well-Known Member
Ok coolNah, no time like the present. I get regular issues about 3 weeks after pistils so there's something in my set-up that needs improvement so I'm happy to experiment with something new.
It's not insanity if you are tinkering and tweaking, only if you do nothing and expect the different result, but we are all insane, myself included, so really... what do I know...Like Einstein said, "The definition of insanity is doing the same thing over and over and expecting different results." Or some such thing. I'm ready for some new/different results.
It's definitely to address calcium. Calcium isn't a "heavy metal" as in a toxic heavy metal, but it's a metal and it's heavy.And give me your thoughts on the benefits of top watering vs. my bottom watering SIP. I assume it's got something to do with helping the calcium work its way down through the medium, but want you to flesh it out a bit if you would.
One of the advantages we tout in the bottom watering SIP is the moisture gradient that is constantly maintained in the pot so that the plant has a consistent access to moisture at whatever level it wants.
So, top watering and letting it dry a bit will be a change but it's the end results we're after so if they can be improved with a slightly different approach, bring it!
So it sinks in water faster than anything else in your pot. The end result is the top of your pot gets calcium deficient. So to counter that you add EWC, but that EWC needs to get down. A little spritz of water will moisten the soil but not enough.
You can't fight or stop calcium from going down so you need to cater to it. Also, wet soil is air negative.
The space between the soil particles can hold water or air. What you want is those spaces filled with air, but enough dampness that the walls are covered in condensation. You don't want the water knee deep, just steamy. Healthy soil is 25%.
So in a nutshell I suspect your soil is calcium deficient, as in it isn't cycling properly, and oxygen deprived from excess moisture.
Every time you top water 2 things occur, other than the obvious which is giving the plant a drink.
Water is heavy so nutrients and minerals get washed down.
The other is that as the weight of the water moves down, it pulls air in behind it. If it didn't it wouldn't flow down, suction would hold it up.
This is all what I saw when I tried swicking. The top of the pot was bone dry and a calcium deficiency and starvation due to oxygen deficiencies in the lower wet roots occurred because any and all food must be attached to an oxygen molecule in order for aerobic microbes to recognize it as food.
When I switched my Swick to top watering all issues disappeared in 10 days. The plants immediately flourished.
So why do some sippers win and some lose is the question.
Take the synthetic ones out of the equation. Synthetics are hydroponic. Calcium isn't needed as a soil conditioner, only as a nutrient. Hydroponic roots take it in from the bottom, not feeder roots from the top.
So how many in LOS reach the finish line without detriment is the question that applies here. I've only seen 1. That's Stone. I'm sure there are more, I just have't encountered them yet. (@Thirvnrob comes to mind, I think calmag and possibly top watering saved him.)
So Stones SIP shape combined with his soil areation product (perlite I think) are working in harmony, not flux, and he adds calmag to the reservoir. He uses Rev's mix so the soil is the horsepower, not things added afterwards. Topdressings and such are maintainers, not base suppliers.
Does he top water? Does he let the Sip go dry? @StoneOtter please weigh in.
Lets start there and then build off of that.