Fastbuds LSD-25

Rhino skin is fine it adds no ppm, just mix rhino 1st when make your neuts , and you should runoff at least 10%, or you will get a buildup of salts and that will cause you problems down the road.

If your not watering to runoff you have areas in your planter that never get wet or fed so roots die off there. If you wet the entire planter, more roots more bud. As of adding Rhino skin I would go easy and watch your runoff ph and ec to see the effects and ec amounts so you dont end up overfeeding. Cheers