Hello there. When I flush? Let's talk about it👍
I'll try to keep it short... I've been taught to base the beginning of my flushes by trichomes and trichomes alone. x60 magnifier will also greatly help. There are three basic stages to trich dev.
1. TRANSPARENT
Transparent trichomes only contain precursor cannabinoids that are not psychoactive. Harvesting at this stage will not give you a very powerful product.
2. MILKY
Milky resin glands contain fully ripe THC. To get buds as powerful as possible, you need to get as close as possible to 100% milky trichomes. Note that it is impossible to obtain 100% milky trichomes, as new resin glands are continuously produced. Likewise, even after harvest, the trichomes will continue to develop
3. AMBER
Amber colored resin glands are a sign that THC has been converted to CBN, a degraded form of THC. This means that your product has lost much of its potency. CBN is not desirable in any crop, as its effects are more narcotic than a true elevation.
Determining when to Start! flushing in coco I recommend running at least 4 flushes and to take ppm/ec readings of your run off to ensure it's actually dropping. Not low enough? Flush again👍. I'd begin when a majority portion of trichomes are cloudy. When wrapped up, you should hopefully chop when there's mostly all cloudy trichomes and even some amber color starting. Perfect👌 There's also a hot tip about feeding sugars and or mollases during this flush period to keep the girls from going into shock from immediate starvation.
Finally, if you want a racier high, cut them down a bit early. Narcotic body high, chop down a bit later. 3-5 days from optimal harvest date, either way, can change the affects your cannabis will give you.
Hope that helped and wasn't too much. That was not short... Apologies. Drop me a PM if you'd like to speak further. Happy trails and good luck👍. You're are the finish line and they're looking mighty fine👌😉