The Viagrow pH Test Kit comes complete with pH up & down liquid nutrient adjusting solution & is formulated using the highest food grade quality & includes a broad range pH Test Kit Which will indicate the pH value of your nutrient solution. While the liquid pH down solution uses food grade phosphoric acid & is safe for all food crops， the pH up uses food grade potassium hydroxide & is safe for all food crops. The Viagrow pH up & down are highly concentrated so less is needed for use as compared to most brands. Viagrow pH up & down can be used in all growing mediums - soil， soilless， hydroponics， or to adjust a foliar application. Maintaining a proper pH is an important part of growing healthy plants & Your broad range pH Test Kit will measure pH as low as 4 & as high as a value of 10 to grow the most vigorous plants maintain a slightly acidic pH in your choice of growing Media， It is recommended that the pH for most crops fall between 5.5 & 6.5 use moderately. Add 1 Drop of adjusting solution at a time to the plant nutrient solution & then test the pH. Repeat application & test again until appropriate pH level is achieved

Highly concentrated and cost effective plant nutrient adjusters

Food grade quality and safe for all food crops

Can be used in all growing medias

pH test kit can indicate a broad range of pH value from 4 to 10 and includes 160 tests

Natural pH up and down powder is to be used to raise or lower the pH of plant nutrient solutions