1st journal! 3rd grow, QB'S & FFOF soil w/ WWEF seeds

I usually flip before the food runs out. Typically have to start feeding a couple weeks into flower. You could flip now if you wanted. It’ll probably eat up the rest of the food during the transition period.

Decisions decisions decisions. Previously made flip decision based on size (figuring plants grow spurt) so I’m in new territory here with using TDS readings. According to the foxfarms feed schedual they want some of the treo and the soluables (one) in the mix one week before flip??? I’m getting anal I think!

They want you to feed from seedling. But not necessary or advised with ocean forest. Your ppms are at the level they ask for in week 4 flower. If you want you can perform the first flush on their schedule and then start with week 1 flower nutes. No reason to flush, if you didn’t want to, as there shouldn’t be any salt build up since you haven’t used their nutes yet and just flip and feed once the ppms get below what they recommend. After you start feeding the nutes, you will want to follow their flush schedule.

Are those ppm readings on schedual for what goes in or what the runoff should be???

In. Ideally, you want your in to match your out.

Ck me if I have this wrong, according to the schedule in week 4 say, is the ppm # listed is that what it would ad up to if all neuts listed for that week were used and if so at what dilution to hit those #'s??? I must be missing something!

Yes, those numbers are for all the nutes listed added. So you’ll fall a little short of those numbers if you’re just running the trio. Just add the recommended amount of what you have. I have adjusted those numbers for a 500 scale meter on that chart because the actual fox farms chart is on the 700 scale so the ppms they suggest is higher than what should be used if your meter is 500 scale. This is why people burn their plants with these nutes. Here is the original.

Here is the chart for different scales. 500 scale (Hanna) on the left, 700 scale (truncheon) on the right.

As you can see, where fox farms is calling for 1400ppm (on the 700 truncheon scale) it would actually only be 1000ppm (on the 500 hanna scale).

You can check which scale your meter reads by checking ppm and then switching the mode to EC.

Example: if you’re reading 500 ppm in your nutrient mix and switch to EC, if EC is 1.0, your meter is on the 500 (Hanna) scale. If you switch to EC and it reads closer to .7, your meter is on the 700 (truncheon) scale.

1 Like

Want to use the treo and the 3 soluable on the bottom (purple) on the schedual.

Checked my meter and on Ec It read 7+ so I’m on the 700 scale???

I’m not that far off that “original” schedual ???@BobbyDigital

Ec of 7+? That would be 3500 ppm on 500 scale and 4900 ppm on the 700 scale. What meter are you using. Wonder if there’s a x10 function on your meter

This is the unit. Checked instructions and no mention of scale.


I’ll do another test on the tap water.

Was it on tap water with a Ppm of 350? If so, the ec would be .7 and that would be a 500 scale meter

It was my tap water. Ok where are we now. LOL

What does your tap water read for ppm and then when you switch to ec

Yeah, it’s a 500 scale meter. If it were 700 scale it would be closer to 450 ec. Looks like you meter has a x1000 modifier. So looking at the chart I posted it would be 0.64 ec. Or .6 since that chart doesn’t have a hundredths slot

I dont know if this is possible but I believe I am more confused now that when I started! LMAO.

1 Like

My blue lab can be set to 500 700 or ec. I set it to 700 even tho they say ec is more accurate

In simplest terms, use this chart for your ppm now that we know it’s a 500 scale meter