ninjagaiden
Well-Known Member
quick question guys.
What EC/PPM and PH do you guys like to run with Seedlings?
What EC/PPM and PH do you guys like to run with Seedlings?
Hey k3nzi like to run between 5.6 and 6.2 and start with an ec of 0.6 then 0.8 then if theres no sign of nute burn i go up to 1.0
10ml of A and 10ml of B in one gallon of water adds up to 540 ppms on my Hanna Meter. Tested it myself just the other day and was maybe a little over-excited when I read the results of my experiment and compared them to my hypothesis./QUOTE]
PPM is based off of EC and is not universal. EC is universal. Your Hanna meter saying 500ppm is the exact same as my Oakton saying
700ppm. They are based off of a conversion factor, Hanna's conversion factor is .5 and Oakton is .71. There are many different conversion
factors and they are even able to be changed. I can change the conversion factor on my meter if I want to. It is all a way of giving you EC.
Your 500 ppm = 1.0 EC because of your conversion factor. 700PPM on mine = 1.0 EC because of the conversion factor.
Dunno if that helps your numbers, but maybe you should base it off of EC in order for us to all be on the same page.
I have taken my time with this. I do understand much better now that with my meter I should be relying on the uS/cm for the measurement of the electrical conductivity. That this measurement is not accurate but can be used as a relational tool.10ml of A and 10ml of B in one gallon of water adds up to 540 ppms on my Hanna Meter. Tested it myself just the other day and was maybe a little over-excited when I read the results of my experiment and compared them to my hypothesis./QUOTE]
PPM is based off of EC and is not universal. EC is universal. Your Hanna meter saying 500ppm is the exact same as my Oakton saying
700ppm. They are based off of a conversion factor, Hanna's conversion factor is .5 and Oakton is .71. There are many different conversion
factors and they are even able to be changed. I can change the conversion factor on my meter if I want to. It is all a way of giving you EC.
Your 500 ppm = 1.0 EC because of your conversion factor. 700PPM on mine = 1.0 EC because of the conversion factor.
Dunno if that helps your numbers, but maybe you should base it off of EC in order for us to all be on the same page.
Another way to estimate guaranteed nutrition is already on the bottle. A few quick calculations and you can take the percentage listed on the bottle and get what can be at best considered an approximation of the ratios... perhaps within 10% of the actual levels plus unlisted elements included in the formula. It is inevitable that there will be more in the solution than promised and sometimes the estimations cannot be made because we don't know what meters the nutrient companies have which is measuring the guaranteed concentration of specific elements or if they are basing their measurements on the weight of salts per volume of water.
Here is a copy of the calculator I've constructed for my personal use which can approximate the EC of the solution based on the promised minimum ppm of the nutrients listed on the bottle. My measurements are based on a 0.5 conversion for ppm to uS/cm. I also compensate for an additional 18% when doing a the uS/cm calculation based on my experience with the calculator and the actual measurements so that someone without a meter could have at least a vague idea of what is going on inside the solution.
Please, take this spreadsheet with a grain of salt. It is simply a tool. If you don't like it, you don't have to use it, and it is intended for fun. You could use it to get ratio differences of different nutrient lines so as to compare which system recommends more of one element than another.
Zoom too 80% to see the whole thing. Input the starting uS/cm (double ppm) in the top left box, then fill in the rest with your nutrients. Some elements are not listed on the sheet as they are not listed on most bottles, or are in very low supply and account for very little total ppm. If you have a meter, give it a shot, and let me know how close the final predicted uS/cm is to the actual measurement. If it is close then you can have an idea of what your ratios probably look like and what the nutrient ppms are more or less.
Again... After getting laughed off this thread for something as simple as the semantics of phosphorus over P2O5... when they both just a relational representation of approximations... I don't want to continue to burn bridges with people thinking I'm on some high horse. Take it or leave it.
http://www.filedropper.com/snowcrashcalculator20
Florakleen for a day and then straight water for 6 days....does the trick!....Peacethanks jb mate
ill check it out.........I was just wonderin could you give me some advice on hows the best way to flush your coco, any tips would be great mate
im in 11L pots plants drinkin 2.5L a day an im goin to use sucanat with my flush water
cheers + peace
I would never reuse coco....it holds way to many salts...It is really difficult to flush the flower boosters out....Peacecan i reuse coco if i used bush master?