coco problems in veg

[resinscientist]

ph 5.7-6.0
h&g coco
maxibloom nutes
tap ec=.5
total ec with nutes=1.4

 

[siftedunity]

what are your temps?

 

[resinscientist]

72-75 degrees night time 79-81 day time

 

[resinscientist]

humidity 48-55%

 

[Weeded1s]

I think your pots might be staying a little to wet. I also see that cal was deff at some point and with only this little info id say typical overwatering causing lockout. Also double check ph pen just to make sure. I dont use canna nutes so someone will come by and let you know if 1.4 ec is too hot or if it lacks in anything. Lastly r u under hid lighting or t5s/flouros for veg?

 

[resinscientist]

600 watt metal halide conversion bulb ... general hydroponics maxibloom nutes..why do you say cal def? i thot so also .. thought about adding calmag + from botanicare but some people think that is not a good option.. i have heard of people running ro water with 10ml/gal calmag+.. i have ro and tap... if i should go the ro route i will just need a heads up on which path to take..so confused..so lost.... last run i ran into this problem 2 weeks into flowering... just want to figure it out before i start flowering... today i added 1 tsp per gallon epson salts... thinking it was a mag def... just dunno what to do ... any advice would be appreciated thanks everyone ! just glad i get responses on here ! VERY HELPFUL

 

[stoned40yrs]

This is just me but I don't change the damn recipe for running either MB or 6/9. The recipe is the recipe and I ain't mixing it with no ec meter. It's 1 tsp MB per gallon of water in order for the plant to get everything it needs. Give them 1/2 tsp per gal and run the risk of a deficiency. That said don't be jacking up your nutes because of what I say

 

[resinscientist]

ok thanks stoned40yrs ! appreciate your advice ! ill let u know how things go

 

[Weeded1s]

Cal deff cuz I see spots. Overwatering cuz your new growth is really yellow. Id chk ph cuz you can tell theirs nutes not getting through due to lack of n in the lower leafs and the defficiencies. Spinng tips means ph is off or too much N...or possibly bugs. These only work if u know exactly what your looking for as a lot of deff can look like others. Bugs can do wierd things too plants as well so make sure your clean there as well. The prob here.. is you have a few things going on at once.

 

[Weeded1s]

Under hid lighting I believe plants (most strains) should do ok on full 6/9 or 1.4 ec for me. I start out at .1 ec with ro water. If I was u id make sure ph is 5.7 going in (the lower ph might help the cal) and mix at 1.2 ec per gal of maxi..things should clear up nicely. Mix 1 tsp per gal..shake it up..dump a little out and add water back if it needs dillution to 1.2. I think your tap is borderline but good enough. I never use tap as I like a clean slate to start with.
Picture 1 artist with a blank slate that can create whatever he wants with no interference...vs. a 2nd artist who has to make a picture but his slate already has 14 dots and 2 vertical lines on it.
The blank slate allows for a clean start where you have 100% control..give or take 2%

 

[Cartel530]

in coco with house and garden you need cal mag. I used 7ml a gallon. Plants that size with established root cannot be over watered

 

[Weeded1s]

He uses maxi.. I made the mistake saying canna nutes.. but .hes not using h and g either. So before we make him switch nutes (dont switch) I believe maxi is close to 6/9 and id say dont switch a thing as far as nute companys. 40 watter knows whats up with maxi so id ask him a question or 2 regardless if you think he is a dick..cuz hes really not.

 

[Weeded1s]

And plants that size has nothing to do with if the roots have filled out the container or not. If u feed a lot and you just transplanted you can mos deff over water. I have plantz twice the size I can overwater so .. overwatering is the number 1 prob in coco..since noobs and vets just want to water and water them. If your pot is full of roots ..then and only then can you not overwater..and to be honest at that point youll be watering 1 to 5 times a day. Get established root wise then think hydro. At first I treat it like soil so the roots grow into the pot.

 

[OscarLeGrouchII]

Coco also needs to be charged w Mg+ and i believe Ca+ before adding nutes to the media. Otherwise it will suck Those minerals out of your nutes and deprive your plants. Soak media w 5.5-5.8 pH calmag solution at 30-200 ppms prior to or at transplant. OGs and chems will require higher Mg+ like 6-9 mL per gallon.

 

[Weeded1s]

^ thats was up.. but id pre charge around 1 ec to be safe. And depending on nutes and which coco you buy u might not want to add that extra cal mag. Just use a good base nute. Some say canna coco is already set go so no "setting up"/ precharge needed. Just making sure if some one new ran into this it would make complete sense.

 

[Weeded1s]

Oscar lets try to talk ec from now on..as its universal...if thats cool with you.

 

[GonjaLove]

With the more expensive coco you do not need to "charge" the media. Just put some in a cup and cut some holes in the bottom, run some water thru and make sure its not loaded with salts. Thats it.

 

[papaduc]

Some myths about coco that have run out of control especially on these boards:

Any buffered coco does not need charging. Buffered means it has been rinsed with calcium nitrate to displace the excess sodium and potassium and is ready to use. If you use buffered blocks/bales, expand them with a balanced base nute at 1.0ec.

Coco food does not require the addition of calmag. It's the biggest myth in coco.
If it does, buy a different (better) food.

Coco doesn't need to be watered every day unless it needs watering every day.
If it's not drinking daily there's a reason for that. Whether it's low temps, rot, or just that it hasn't rooted out the pot, adding water every day for no other reason than you think it's the rule, won't help.

And one more thing... I've said this to you a few times now.... base veg feeds are your bread and butter...

Using nutrients which aren't ideally suited to the veg phase, then adjusting them down to a normal level, then adding epsom salts... bad idea. Use a base veg feed and use it at 1.0ec

 

[stoned40yrs]

The overwatering some of his leaves show happened "after" the real problem, what ever it is. I dealt with a cal or mag problem last week on some plants I just put into bloom. It took me a couple days to figure it out. MJ plants in small coco pots don't like lights off temps in the 50s As soon as I blocked off the cold Alaska air intake they no longer have the cal/mag deficiency All the years I grew in 5 gal soil pots the plants had no problem with this cold environment. 5 gal of soil is great root insulation, 2 gal of wet coco isn't

 

[resinscientist]

i checked the rootmass in the coco and there are roots everywhere! very white , no bugs that i could see. i spray with neem every 2 weeks also. when i water ( which is one, sometimes two times per day) i do so when the top 1- 1 1/2 inches of coco on top is dry and below that is moist..too often ?? i can use RO water if that is better i have an RO machine, i was just under the impression that tap with maxi in coco was the way to go . i ran 6/9 with RO water and 5ml/gal of calmag+ awhile back and ran into this same problem in the 2nd week of flowering.. same spotting.. and yellowing on the edges of the loves ... appreciate all the feedback guys ill always listen to anyones input. as you can see the top of the plant is very light green also ...very very light green..i tested the runoff last night and it was 6.5 seems way too high? ec was 2.0! also seems way too high... nutes going in at 5.8 the last week at 1.4ec