Deficiency?

[KnowTheGrow]

So, my plants are a couple weeks old. In ffof, feeding RO water, 1ml Cmg and .25 Si. I'm thinking possible over watering? Cmg deficiency? Maybe both lol. I'm new to this so any help would be appreciated. I also have this weird growth deficiency on one, the top leaves aren't separating...should I leave it alone, cut off the top? Thanks

[D.A.A.S.69]

In your FFOF soil ,they don't need any nutrients for close to a month.
What your problem is your plants need to be transplanted quickly. Good Luck with them KTG.

[Weed Pharma]

It's most likely not a deficiency- anytime nutrients are involve the damage pattern is symmetrical. Generally pests cause asymmetrical signs.

The plant in pic #2, looks like it's foliage is growing faster than the roots- I agree with D.A.A.S.69 that a transplant is in your near future.

Double the amount of Si - no matter what you do/ or what the cause ends up being.

[KnowTheGrow]

Some 2gal smart pots on their way!! So, are y'all saying I shouldn't have added cmag to the ffof?

[Weed Pharma]

Nope- CalMag may not be needed in soil grows (unless you are using LED's) but its much easier to add a little CalMag preventively, than trying to correct a deficiency.

[KnowTheGrow]

[KnowTheGrow]

Oh ok. I'm using RO water and was told to add cal mag. I'll discontinue and see if that helps. Also, why with leds? Thanks

[Weed Pharma]

You SHOULD be using CalMag- The light manufactures now recommend CalMag with LED's (years ago they didn't and lots of us had CalMag deficiency)

[WeirdWiredWolf]

Aha. That might be my problem as well (well, one of them). I didn't know that with LEDs--thanks!

[KnowTheGrow]

I'm using 200w T5's for veg then adding another 200w for flower. I also forgot to mention that I sprayed them with peem oil (I think that's what it's called) for insect prevention. But they were already showing yellowing early on before spraying. The only one not showing yellow spots is the one that won't open its top leaves. I kinda want to cut off that top...bad idea?

[D.A.A.S.69]

Morning ktg, You need to be transplanting them,

[9fingerleafs]

The second plant is growing two main stems by its own. It will grow slower than the first one for a while. Keep using RO but be sure to add calmag or any grow supplement. Pure RO water will leach minerals out of the plant. And yes I would also raise the concentration to 0.5 EC

[KnowTheGrow]

Leave the center stem or cut it off?

[9fingerleafs]

Leave them. More stems = more colas

[KnowTheGrow]

Ok,cool. It just looks so weird with its single cupped leaf. Hopefully it'll separate by itself but...I haven't seen any signs of it doing jack yet.

[KnowTheGrow]

Transplanted into 2 gallon fabric pots. Fed cal mag (1.5ml) Si (.5ml) and GW Microbes 1/4tsp.

[LaughingBuddha]

Well done! Transplant and water. No need to feed for the next 4 to 6 weeks. Welcome to dirt farming. In the end it is essentially hydro. The soil becomes leeched of nutrients and liquid fertilizers are the norm from that point on.

[9fingerleafs]

Woooooord

[KnowTheGrow]

What about when transplanting to larger pots for flower...would you continue feeding or pull back a little due to the fresh soil?

[LaughingBuddha]

I'd transplant into final container now.

[Therocketsurgeon]

I see some chlorosis and short internodes. The chlorosis is likely caused by a magnesium deficiency. But based on the pictures, the plant roots just had to grow a little longer to get more. Anyways, if you ever see short internodes on an older plant, if the cause is a deficiency; it would be from the lack of zinc ,.

[KnowTheGrow]

Ok cool. Thanks. The oldest is only about 3 weeks from sprout. I also added a little more cal mag and Si