yeah im in coco and flushing just as normal man bout 5 days just minimum feed like a couple of ml . you shouldnt water totally nute free as it kills your micro organisms, if your re using the coco.
yeah there was a definate boost how much i couldnt really say to be honest but a noticeable boost (i wished id done it sooner).
yeah used as recommended tho trying to get the dose right was a nightmare i ended up just using a plastic teaspoon per 5L in the end as i was running out. i will definately be buying it again though