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Megacrop 2 part adjustments help

Bio boy

Active member
Long talk with many peeps says ignore my tds pen and follow the bag a then b. And read the plants.



Question is my tap water is 395ppm base quite hard water i know.



But heres my problem when i add to my 200litre tanks the dose by the pack. 222.22gram bag a and 132.28gram bag b

GLN says ppm should be 661 +base so 1056ppm total.



My ppm reads 1700 and yeah i calibrated it and checked scale.



GLN said ignore the ppm as some electrical cobductive ions read differently and cant be trusted.



Ok i can get on with that.



But my plants have some leaf curl.liand hydro stopped drinking water a sign ec is too high


Question is
1.

Do i mix up a stock solution of a and b in a bucket with day 5 litres water 222g bag a and 132g bag b and add it to my res until i get to 1056ppm? Cause this would use half the food only (advice from a forum user on 420)


Or
2. Do i take out 40litres and add it plain to lower? Still seems like i am only using half the doseage npk reccomended then.



Or

3 do i adjust calnit to reduce nitrogen and possibly ppm?





My ec reads 3.2 and i feel thats too hot.







@@@@@@@
Same problem in the veg room.



I add nutes as dose says and 1700ppm i feel scared to feed em it and what do i adjust if too strong?



Dont wana drop off the npk scale the wrong way
 

Creeperpark

Well-known member
Mentor
Veteran
When you use a starting water with 400 ppm you are taking away valuable "ion" space for the nutrients to up-take. If the receptor sites are blocked with carbonates from the tap water the nutrients have no place to link. Just use rain water or RO water mixed with the tap to bring down the ppm to about 80 or 125 ppm. I have never given any plant 1700 ppm of anything, so I don't know what that would look like given to a plant. When I feed my plants I only give 400 ppm max and that's counting cal-mag. You will have problems using the liquids you have now. Good luck
 

Bio boy

Active member
1 litre bottle water 017pm bottle a
1 litre tap water 377ppm Bottle B

both bottles get
bag 1 0.66gram
bag b 0.66gram

the GLN RECCOMENDATION LOOK AND EXPLAIN NOW! Am freaking out lol

bottle A bottled water PPM ....714 (reccomneded im tryin hit 671 so not bad this i expect in ppm differneces)
bottle B tap water PPM 1890 (with a 377 base so 1577PPM in nutes)

so the tap water somehow is effecting it prob due to the ammount of calcium in my tap as ur meant to add that bag B last.

so do i re calc my feed for tap?
so do i try filter water?
will this fix by adding to water first before the tank..no same result.
can i get a RO filter now??? NOPE impossible atm price on them and im in loft preassure needed to get it there is daft,
after this grow i can afford to get it but till then what can i do?
 

Creeperpark

Well-known member
Mentor
Veteran
If you could buy bottle water, you could save money by mixing with tap and lower the ppm. Mix your mix check the ppm and if its high, just keep adding enough bottle water to lower it. If you have to use a high ppm tap water then you need to use acid to lower the pH before mixing. I can't see a pH reading in your thread. Have you tested it?
 
Tap water filters cost like 30 bucks bro

But 1700 sounds like you put too much nutes in I think you should trust your gut. Personally I would half and half that with plain water before feeding. and I also think you should consider tap water filter for one of your sinks
 
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