COCO COIR First Timer

[Chris77474]

Growing in coco first time. Switched from living soil. Okay I know you water with nutrient water with 10-20% run off I get that. But what about when I'm using plain ph water in between feedings do I water to run off or water just enough to saturate the coco? Also do I add cal mag every watering?

[9fingerleafs]

The calmag depends on a few things but I like to feed coco every watering, I don’t water until runoff because I don’t like to waste nutrients.

[MrMotion]

I only use phd plain water one watering every 3 weeks or so, otherwise I feed them every time. Unless I'm having an issue of some sort. I run off every time, nothing crazy

[Walty]

I just finished my first coco grow after using soil for years, I never ran plain PH water between feedings. I fed a light mix (50 percent of recommended) with every feeding. I only fed 1x per day, so the runoff was crucial in my opinion to get the residual salts out of the soil. I found that the ppm of my runoff was quite high. I was feeding one gallon one time per day to my mature plants. I also ran calmag with every feeding and STILL had a calcium deficiency on one plant, so I’d say yes with the calmag.