what the heck happened

[Mañ'O'Green]

I guess it's not root rot. Smelled the pot all over and it does not smell like anything.
Although the buds itself it kind of smell like if it was really unripe bananas..

One less possibility to worry about.

Here is a equivalent EC chart. So we all speak the same numbers .

 

[Olderfart]

If you just stick with EC, you don't have to fuss with ppm conversion rates. PPM numbers that these meters give are just the EC numbers after conversion anyway. EC on its own is unambiguous no matter what meter it comes from, although some measure in milli, and others in micro, so the decimal point varies. EC of 2 on my meter actually reads as 2000, but it is the same thing precisely.

 

[growingmicro]

OK, so I flush it with ph water to 6.2 and got the Ec to 0.96.
Should I keep going and take everything or should I stop.

What is the process of doing a flush because of to much nutes?

 

[Proph]

OK, so I flush it with ph water to 6.2 and got the Ec to 0.96.
Should I keep going and take everything or should I stop.

What is the process of doing a flush because of to much nutes?

.96 is fine. It's right in the range you want to be in. From now on when you mix your nutrients use your meter and mix your nutes to the same range of .9 -1.1 ec. It may take some playing with, but that's where you want to be. When I used bottled nutrients I never went over 500 ppms (.9 ec) unless the plant asked for it or showed signs that it needed it, which was rare. I would start at 250ppms (.5 ec) and increased as needed. Keep in mind that most of these feed charts and nutrient lines aren't designed specifically for cannabis.. They are marketed towards gardeners who grow veggies and fruits ect.. And if they are designed for cannabis, they aren't designed for autoflowers. Most feeding charts are based on 4 weeks veg and 8 more weeks of flower.. You don't get 4 weeks of veg with an auto.. You should be in pre flower around week 4 of an auto. So the levels on feed charts are often way to high for autos.

 

[Olderfart]

Ok, this is my take, and I have to say first that I have not done soil this way. I have done coco, and recently Sunshine #4 which is a low nute peat mix to which I have added lots of perlite. The problem with soil is that if it is not well enough drained, particularly if the pot is large relative to the plants involved, flushing may result in overwatering stress for the plants - i.e. lack of oxygen in saturated soil. I do not know enough about your soil mix to know what your specific risks are.

Having said that, when I flush, I use nute mix at the EC and nute makeup that I want to use, I do NOT use plain water. Flushing with plain water, in my opinion, subjects plants to excessive osmotic stress, although I understand that many growers do this and get away with it. I use salt based nutes for flushing, and see no realistic option for getting the job done with organics. The flushing process will remove a lot of the organic stuff that would otherwise be feeding your plants, but at this point in your grow you may have no choice.

When I flush, I top water with my nute mix and collect the runoff until at least the EC of the runoff is on target more or less the same as the input. Once I get to that point, I know that the medium is at the EC and, with coco at least, the pH target, so the job is done. Unlike my experience in coco, in my peat mix, I found that it is so strongly buffered, presumably due to the dolomite lime in the mix, that the runoff stayed at ~6.5 no in spite of the input pH (I used 6.35, then 6.2, and finally 6.0, with zero difference in runoff pH). As @Mañ'O'Green has so often pointed out, if you are supplying nutes, they need to be a complete and balanced package. In my last flush in Sunshine #4 for example, I used Megacrop II with just a small dose of cal mag.

Anyway, if I were you, I would make a decision on your target pH and EC, mix up a lot of nute mix (I used close to 4x the volume of the pot) at your selected EC and pH target, and keep flushing until you get the runoff to the EC you choose. You may or may not get the pH all the way due to buffering, but I would not worry about that, the buffering is your friend. Once you get the runoff to where you want it, you will need to let the pot dry out well before watering again. In your setup that will mean at minimum siphoning or vacuuming out all water from the reservoir until no more drains into it, and then leaving the reservoir empty for at least a couple days before watering again.

All just my two cents of course, others may well have contrary ideas, especially growers using your SIP/organic approach. Bottom line is that if you do not do something effective, your grow is looking headed for trouble. So, although a flush comes with risks of overwatering, and may bugger your pure organic hopes, it may nonetheless be your best available option.

Good luck with your decision, please keep us posted on how you make out.

 

[Olderfart]

OK, so I flush it with ph water to 6.2 and got the Ec to 0.96.
Should I keep going and take everything or should I stop.

What is the process of doing a flush because of to much nutes?

And, to clarify, my response was to the question of how I flush, not whether you need to flush further. @Proph says that your current EC is ok, so it looks like you are done for now. Just keep an eye on them for a few days and see how they respond.

Good luck with it.

 

[Mañ'O'Green]

Ok, this is my take, and I have to say first that I have not done soil this way. I have done coco, and recently Sunshine #4 which is a low nute peat mix to which I have added lots of perlite. The problem with soil is that if it is not well enough drained, particularly if the pot is large relative to the plants involved, flushing may result in overwatering stress for the plants - i.e. lack of oxygen in saturated soil. I do not know enough about your soil mix to know what your specific risks are.

Having said that, when I flush, I use nute mix at the EC and nute makeup that I want to use, I do NOT use plain water. Flushing with plain water, in my opinion, subjects plants to excessive osmotic stress, although I understand that many growers do this and get away with it. I use salt based nutes for flushing, and see no realistic option for getting the job done with organics. The flushing process will remove a lot of the organic stuff that would otherwise be feeding your plants, but at this point in your grow you may have no choice.

When I flush, I top water with my nute mix and collect the runoff until at least the EC of the runoff is on target more or less the same as the input. Once I get to that point, I know that the medium is at the EC and, with coco at least, the pH target, so the job is done. Unlike my experience in coco, in my peat mix, I found that it is so strongly buffered, presumably due to the dolomite lime in the mix, that the runoff stayed at ~6.5 no in spite of the input pH (I used 6.35, then 6.2, and finally 6.0, with zero difference in runoff pH). As @Mañ'O'Green has so often pointed out, if you are supplying nutes, they need to be a complete and balanced package. In my last flush in Sunshine #4 for example, I used Megacrop II with just a small dose of cal mag.

Anyway, if I were you, I would make a decision on your target pH and EC, mix up a lot of nute mix (I used close to 4x the volume of the pot) at your selected EC and pH target, and keep flushing until you get the runoff to the EC you choose. You may or may not get the pH all the way due to buffering, but I would not worry about that, the buffering is your friend. Once you get the runoff to where you want it, you will need to let the pot dry out well before watering again. In your setup that will mean at minimum siphoning or vacuuming out all water from the reservoir until no more drains into it, and then leaving the reservoir empty for at least a couple days before watering again.

All just my two cents of course, others may well have contrary ideas, especially growers using your SIP/organic approach. Bottom line is that if you do not do something effective, your grow is looking headed for trouble. So, although a flush comes with risks of overwatering, and may bugger your pure organic hopes, it may nonetheless be your best available option.

Good luck with your decision, please keep us posted on how you make out.

I have puzzled over this Bio-bizz soil for a while now. The remaining solid elements make it nearly impossible to salt feed after flushing it so drastically. The soil microbes are going to return and throw the balance out again. I think calcium is the major player here so I have a couple of thoughts. Use GreenLeaf Mega Crop Part A and substitute NPK Industries Raw Nitrogen for the Part B. Then as long as the starting water is not over 100 PPM the calcium should remain in range. The other thing is the tack that @Proph is suggesting I just don't know if it would be fast enough.

Any how

 

[elcoloan]

It would be useful if you did a slurry test after all the fluishing you've done... just curious to see how different pH and EC in the slurry would be from what your getting from the runoff.

 

[growingmicro]

It would be useful if you did a slurry test after all the fluishing you've done... just curious to see how different pH and EC in the slurry would be from what your getting from the runoff.

I will once I get coffee filters, maybe tomorrow.

 

[growingmicro]

I have puzzled over this Bio-bizz soil for a while now. The remaining solid elements make it nearly impossible to salt feed after flushing it so drastically. The soil microbes are going to return and throw the balance out again. I think calcium is the major player here so I have a couple of thoughts. Use GreenLeaf Mega Crop Part A and substitute NPK Industries Raw Nitrogen for the Part B. Then as long as the starting water is not over 100 PPM the calcium should remain in range. The other thing is the tack that @Proph is suggesting I just don't know if it would be fast enough.

Any how

Sorry I'm very unknowing of stuff, what is the salt feed? epson salts?
Do you think I need Calcium? I try to get it as a single component at my local shop but they didnt had so i bought Canna Mono Magnisium and order the calcium one.

What is a tack ? XD