Method Seven Phone and Tablet Camera Filter HPS light-meters Silicon concentration in soil water

Silicon concentration in soil water generally does not get above 20 ppm and this is the level we recommend for hydroponic nutrient solutions

phosphorus (P)

Outperforms the opposition on taste and aroma

this stand helps create the ideal growing environment by preventing water buildup and promoting stronger root development

Method Seven Phone and Tablet Camera Filter HPS light-meters Silicon concentration in soil waterIntroducing Method Seven Phone and Tablet Camera Filter HPS Capture insanely clear and colour balanced shots in your HPS grow room with an easy to use mobile phone tablet lens filter clip. Method Seven technology + Carl Zeiss Vision lens = the perfect combo to show off your girls.