PPMS of Lucas (high?)

So when test my Lucas formula of 8/16 it comes out to 1560ppm and my tap is 200-210... does that sound right? Lucas formula for floros of 5/10 reads about 1160ppm.....And if I mix up aggressive growth formula from GH 3 part (2-3-1) my TDS meter reads "out of range" and my range should be up to 1990ppm - I know pretty close to nothing and any advice would be greatly appreciated. - thanks
 
well if the Lucas formula is 1326 with a starting point of 0 ppm then it would make sense that my reading would be 1530ish since my tap is 210... does that sound right?
 

hellraizer30

Rebel From The North
WHAT DOENT SOUND RIGHT IS THAT EVEN AT A BASE OF 0 then adding lucas it coming to 1326 seems high although lucas does say to not count the tap
ppm so at 1326 you will be fine
 

Heathro

Well-Known Member
I use lucas but i run aeroponics and it requires a far less ppm..

Young plants for me only need about 250-300 ppm
 
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