ppm??

what would be a good ppm to feed my 24 day old plants at? I topped them 3 days ago at the third node. My tap water is about 200 ppm or less. I do nit want to over fertelize them.

500 - 600 ppm

I actually just found out that the ppm of my tap is very low >>20ppm. This is considered to be a good thing correct? One more question that may sound silly..you count the ppm of the tap plus the nutrients right? Or because my ppm is so low should I not worry about that?

roidy said:

I actually just found out that the ppm of my tap is very low >>20ppm. This is considered to be a good thing correct? One more question that may sound silly..you count the ppm of the tap plus the nutrients right? Or because my ppm is so low should I not worry about that?

Click to expand...

Don't worry about it ,what type of medium you growing in ???

Yes your e.c. Is very low,like budtips said 500-600 ppm.remember it much easier to correct when underfed,rather than over fertilized...

these are just two midgrade seeds being grown in the local soil mixed with perlite. I'm just doing this for shits and giggles because i have some blue city diesel seeds starting in rockwool now. Here's a pic of them at 25 days old I just gave them a heavy foliar feeding of fish emulsion at about 400ppm

also I have another question..does the ppm stay the same for every watering? Because on the directions of some nutrients it recommends applying every other or third watering etc so would that mean I use different nutrients to make up for the ppm loss on the waterings I don't use it?

Depends on the plant dude, that's why these people rightly gave you a range of Ppm rather than a exact definition.

When it says apply only on certain days that's the nute saying "use me as feed and The other waterings just give low ppm, ph'd water." Your mileage will vary though on how often you feed in-between plain waterings and how much ppm you give, but no need to go above 700 ppm in veg and I don't think any higher than 1150-1250 in flowrr for a pure sativa.

Be careful because with today's polyhybrids, over-ferilizing could not only lead to burnt leaves, but could cause hermaphrodite tendencies to show easier.

Edit* I actually looked at the pics and hey look good, you started feeding at a good time. In soil, those cotyledons will fall off/be used up before you even know it because everything is so slow. You should google "Lucas Method," and "Hempy Bucket," it will give you faster growth but you treat it like soil. Good luck!