Today i rinsed the coco in all the Blueberries. This meant a very light nutrient solution designed to reduce the runoff EC from what it has been. I was putting 0.5 EC in for the last couple feedings, but getting 1.1 EC runoff. Ideally, they will be equal, indicating that the plants are using what they're getting and not allowing nutes to accumulate in the medium.
In order to take advantage of the pH perfect, I did use the SensiGrow a&b to the water, but at about 1/4 strength. I added RapidStart, procal, b52, and Sensizym. All at diminished amounts except the b52 and Sensizym, which were about 1 ml per liter as before. The Sensizym is ideal for this application, getting in there and cleaning house.
All the Blueberries are in 2 gallon pots. I gave each one 1 liter of this rinse (EC 0.2), but got very little runoff. After pouring in 500 ml more of straight water, the runoff EC was 1.1. I dumped in another 500 ml, and got the Runoff EC down to 0.8 or so. Not wanting to keep adding more water, I stopped there. Baby steps.
You can see in the pics that they're looking pretty good. They were topped last week some time, maybe 5 days ago, and they're starting to Bush out. I think they'll go through today's rinse and in a few days i can feed/rinse them again. A they grow they will use up what's in the coco and we should hit equilibrium pretty soon.
Tomorrow I'll do all this with the Durbans.
The first pic shows blueberry #1. The last pic is one of the Durbans, thriving after being topped the other day.