Yes, I live and die by pppms (actually it's the plants.....haha) so I feel a good meter is important but I like to take things step by step. If you are giving 3/4 strength nutes then I'm certainly comfortable dropping that level back because the plant has already seeen that level....so I know a lesser level is safe.

While we went out one day and spent a BUNCH of money one day to buy EVERYTHING we'd ever need it just doesn't seem to work out that way. You'll buy more equipment down the line as you dial in how you like to grow. Your growing style will change. Some people love the control you can achieve with hydro, while others find it a comlete hassle. There are those who never touch a ppm meter in hydro but I wouldn't even try it. There's more than one way to skin a cat you know (I've always hated that phrase but it fits here.....sorry all kitties) which is why I'm suggesting things rather than telling you that you need them.

PPMS are actually a less accurate term for measuring the nutrient content in your solution. The actual thing being tested is EC....the electrical conductivity of your water. This is the most accurate waya to test nute strength because it remains the same......the terms ppms (parts per million) and TDS (total dissoved solids) (both mean the same thing) are converted by your ppm meter; usually at calibrations of either 700 or 500. So basically the true meter is an ec meter........and it automatically calculates the ppm number for you.
Weedhound Reviewed by Weedhound on . Re-occuring tip burn/WALL of text H=Hydro R=RockWool in Geolite D=Ebb and Flow system, 4 times a day for 30 minutes at a time E= EVERYONE needs to answer lol! E-indoor (grow tent) E-hydroponic E-Rockwool cubes planted in 1 gallon bags with geolite CSL-Geolite Rating: 5