what would you use if you didnt use canna? would you experiment or do you have something in mind?
The Growing Edge Community - Is there a way to convert from ppm to EC? and is basically what youre saying? do you think a ppm meter or ec tester or the hanna ph/ppm/ec tester its expensive but fuk it does all the things i hear about lol. and my nutes chart has ec on it rather than ppm thats why my original question arose...should prob just stick to the chart eh?
EC or PPM - Hydroponics Forum
sorry i also found this...could this conversion be a good way for people that dont know or dont have ec testers you think?