Some help please

Ok plants are 4 weeks old they are in FFOF soil 600watt light about 16" away from light they are really going pretty fast over the last week and half had some problems Early on but they were doing good last week or so until yesterday day I watered them just staight r/o water with just a lil bit of cal/mag ppm was around 56 or so I have them about little less then half gallon I tested run off and ppms are really high on both 2000-3000 I haven't added anything but cal-mag . And the ph on one was 7.2 and the oth was 7.9 . Before I watered them the leaves were nice dark green now this morning they are turning lime green from the stem out , any help I would appreciate , thanx

You have a pretty alkaline base if its 7.9 in general you want between 6 and 6.7 because nutrient absorption for magnesium and other nutrients dies off completely. Your plants look chlorated, i never use any additives with my ocean forest soil all the way till harvest, i only use fish bone meal, dried bana and eggshells and first my plants grew 3 feet tall with yield of around 5 ounces. Keep in mind i planted tomatoes and other plants before this haha, but anyway check your temps because your stem is purple which results from the cold. Try to keep temps around 70-80 F and check the runoff ph again and again and flush the plants until its around 6-6.7. Cheers man good grow but also check for spider mites and other pests which can fuck up your plants.

Yea I'm battling mites right now ?so your suggesting flushing with lots of water until my ph comes down and then just let it dry out before watering agian??

Dracolyes said:

i never use any additives with my ocean forest soil all the way till harvest

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i think you mean synthetic additives...

Dracolyes said:

i only use fish bone meal, dried bana and eggshells

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just splitting hairs, sorry!

OP, your ppm in runoff is going to be really high because it has particulate matter from the soil in it, so i don't think that's telling you much. As for lime-green new growth, i might wait just a minute before thinking its a problem since its new and might need a second to fully green-up in the light. you'll probably want to flush with that RO water 3x the volume of the container (water in stages) to get your pH down. work on them mites too!
be easy,

I'm sorry when you say water in stages I'm not understanding my pots are 3 gallons so would I just hit it all at once with 9 gallons of water or until my ph is down or do I hit it with three gallons then wait until dry then hit it again with 3 gallons untill I hit my target ph??? I will do a google but still would appreciate your advice thanx

Watering in stages means: breaking up the action of flushing into stages. 3 gallons @ each stage x ????? 3stages.!!!
The reason for this is so you don't drown the plant and you don't leach out too much. I am not a fan of flushing organic soil and refuse to. I instead make balance microbial teas or foliar/root drench bacterial/fungal inoculations. A properly fed and hydrated organic soil needs ZERO pH adjustment.

As Dr.J20 said above, the PPM Is inaccurate in organic due to very tiny particles. And don't test pH with a digital hydro meter or even a soil probe, they too are inaccurate. Instead use litmus paper, chem paper, powder chem and liquid chem testers.
If you do flush pH adjust the flush water @ 6.5 with organic source, lemon, vinegar, citric acid crystals, tiny bit of fish emulsion.
*** about the fish emulsion. he making additions for pH adjustments go in stages. lol there's that word again. little at a time until pH is reached, it don't take much at all and obviously within reason! don't want to over do it.

Listen to these guys more experience im fairly new but i did some research on my part. Nice to know that runoff thing isnt accurate , and if you have mites the best way to kill or reduce the spread is ladybugs which eat around 40 a day. Other than that if it gets worse you might have to try some sprays designed for killing mites. Usually these mites suck the nutrients from your plant , i never had them with my grows only on my lemon plant funny how that works. Chlorosis is common and the plants will recover but the mites have to be taken care of soon as they reproduce at enormously fast rates, by the way make shure they are spider mites before you go spraying your plant, usually they move and create little webs between the stems.

Peace brother hope all goes well im trying to setup a small grow box with case fans im not shure how well a diy carbon filter will work with one pineapple chunk if anyone has experience please pm dont wana bust this guys nuts about my issues.

tikitoker's got you on the right path with his advice here. And i would second the call to organics. Since you haven't used any synthetic ferts yet, flushing might not be your best bet. It doesn't do anything to flush soil in an organic grow because you aren't forcefeeding your plants synthetic, salt based nutrients. Rather, you tend your soil-food-web to allow the plant and the microbe herd to exist in a symbiotic relationship. plant exudate feeds microbes, microbes feed plant, big happy family. check out the organics forum for a more full explanation, get your hands on a copy of Teaming with Microbes. It's actually a much easier way to grow once you understand what you're doing.

FFOF will take you through 2-4 weeks depending on the strain but after that you're going to need to add nutrients in some way. AACT and nutrient teas are a good option, and if you don't want to buy raw ingredients, there are some liquid organic fertilizers out there that you can make teas with quite easily (e.g., Earth Juice). Best way to build your tea brewer is a 5 gal bucket with lid, air stone, and ecoplus commercial 1 air pump.

The only other piece of advice i've got for you is always let your tap water dechlorinate if you're using that as your water source. Chlorine will kill off your herd. As of now, chloramines --should you choose to get super anal about something you don't really need to get anal about--can be effectively removed using (i believe) 1000mg/gal vitamin c.

Next grow build your own soil (use subcool's supersoil recipe thread and related information to start with, but pay attention to why your adding each item in the recipe).

hope this all helps,
be easy,