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New batch of seeds

danizeap
(@danizeap)
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Hello! 

I am getting a new badge of seeds next month with a few other new things to start a new seedling tray. I will be getting nutrients (sensi grow coco and great white) , pH and TDS meter, RO watering system and pH up and down. 

I will start these new seedlings in 70/30 coco perlite 

What can you all recommend? 

Light: How close, wattage and what is the best type of light for seedlings? Light cycle? 

Watering and feeding: How often should I water and feed the little girls? How much run off? how much food? 

I think the rest of the variables I have learned to manage fairly well, its these things above that still give me trouble. 

Any other tips are welcomed! 

Thanks guys, ya'll the best. 

 

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Topic starter Posted : June 18, 2020 5:31 pm
twisted1, monkeydo, White Widow and 2 people liked
Macky
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Posted by: @danizeap

Light: How close, wattage and what is the best type of light for seedlings? Light cycle? 

A t5 is great for seedlings, or a low power LED. The light should be around 20 inches away from the plants but that will depend on what light you use. Watch the plants for stretching, or sings of discolouration at the top. If the stretch, lower the light, if they burn, raise it. 

If you use a t5, 6 inches is good and the plant will be very happy

Posted by: @danizeap

Watering and feeding

In coco mate, daily is best, with 10% run off every time. The medium has to stay damp, never let it dry out or you will get an EC spike that can cause problems. So daily, or at the very most ever

other day. But to keep them happy, and keep the medium at the right level, daily is best 

Posted by: @danizeap

how much food? 

With sensi grow, 0.5ml per litre is good to start with mate. But using such a small amount will not make the "ph perfect" so you still might need to adjust it down to 5.8

 

Why the RO system? Is your background EC majorly high? That water has some stuff in it the plants like you see, best not to go full RO if you can help it 


"Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.”
― Mark Twain

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Posted : June 18, 2020 5:41 pm
twisted1, monkeydo, Hart and 1 people liked
danizeap
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@macky thank you! 

I am getting my new light as well, Mars Hydro tw 2000. Would this light be too strong?  Should I have a T5 or low power led for my seedlings and the Mars for later on when the plant can handle the power of the light? 

I purchased an RO system cause im not sure what is in my water and it seems to be affecting the plants growth, they are growing very slowly. So we opted for an RO to measure everything exactly, plus the nutrients that I will be providing the plant from advanced nutrients, the ones you suggested. Is this a substantial enough reason to go RO? 

everything else is so helpful thank you

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Topic starter Posted : June 18, 2020 5:47 pm
twisted1, monkeydo, Hart and 1 people liked
TempleGrower
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I like T5s for seedlings.. I use Sunblaster's 6400K T5s, @39W per light, but they also have some really nice LED light strips. This is my little germination station. You can see how close the tops are to the lights. I just move them down off the booster boxes as they get taller. Usually lots of room in that space for a good 3-3.5 weeks of growth.

IMG 20200618 1044050
IMG 20200618 1043157
IMG 20200618 1048116

But yeah, I like an 18/6 light cycle, some guys do even longer. Plants need sleep too though, 🙂.

Macky is definitely bang on  - and I'm not a coco guy anyways so.. but if you need some supersoil advice.. 🤪 

 

 

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Posted : June 18, 2020 5:56 pm
twisted1, monkeydo, Hart and 1 people liked
TempleGrower
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@danizeap

What is your background TDS in your tapwater now? I've always gone by the 'under 300ppm, no additional treatment needed' rule. If you have more than 300ppm in your tap water then yeah, that might be worth looking into some more filtration.

Our city water here comes in at 220ppm (about 160ppm CaCO3, 40ppm Na+, and random other shit in small amounts) and all I do is adjust pH, no RO or other filtration needed.

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Posted : June 18, 2020 6:01 pm
twisted1, monkeydo, Hart and 1 people liked
danizeap
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@templegrower Thanks! 

I am not sure what my TDS is nor my pH, I know this is not good, I dont have pens so I cant know. Getting stuff shipped to my country takes time so I have to get stuff every month until I get all that I need. I am guessing they are both a little high, since the growth of the plants is very slow. I posted another thread on how slow they were and the consensus was its probably the water. Would you recommend getting the pens first and then evaluate an RO if needed? 

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Topic starter Posted : June 18, 2020 6:06 pm
TempleGrower
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@danizeap

Well, RO won't hurt anything but, it's more money that not having one, especially if you don't need it, haha. Filter replacement and all that. But if you do have issues with your plants, that would be one way to eliminate an unknown variable. If it doesn't fix the issue, you can eliminate the water being the cause and move on to other ideas. If it does, then perfect. Totally up to you though.

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Posted : June 18, 2020 6:18 pm
danizeap
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@templegrower Im gonna work it just in case, its small and practical, you stick it to the hose and thats it. Hopefully It will help with my problems and if not well ill be back here as always jaja 

Thanks!  

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Topic starter Posted : June 18, 2020 6:20 pm
danizeap
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Guys one more thing! 

My grow room is ready, its a 5x5 stainless steal wall with an inline fan and two ventilation holes. 

Is it better to grow the seedlings there or in the tent for more control? and then move them to the grow room for beg and bloom with the Mars Hydro.

Thanks!

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Topic starter Posted : June 18, 2020 7:09 pm
Stoney, twisted1, Yoda and 1 people liked
danizeap
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@templegrower quick question!

I have been looking for a T5 light for my seedlings.

Is there a difference between a growing and a regular T5 light?

Is LED T5 light good? I found some, 18W that I could hurtle together and form a nice rack for my seedlings. Would this be a viable light? 

thanks! 

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Topic starter Posted : June 20, 2020 3:52 am
TempleGrower
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@danizeap

Well, technically you can use any light to grow a plant but, depending on the type of light and its temperature, some are more suitable than others. With respect to T5 fluorescent bulbs, the T stands for 'tube' shaped, and the 5 represents the diameter of the bulb in eighths of an inch, i.e., T5 = 5/8". It's just the style/size basically. The important thing is the temperature - for seedlings you want as high as you can get, which is usually 6400K. This light is relatively blue and so doesn't encourage stretching, which is great for little plants.

T5 lights made specific for growing applications also usually come in 3 versions - Normal Output (NO), High Output (HO), and Very High Output (VHO) - basically the normals are less bright and longer lasting, the verys are more bright and don't last as long, and the highs are in the middle. I prefer HO myself.

And yes, LEDs are great as well. Good quality ones are probably better actually as you don't have to deal with changing/breaking/swearing at bulbs. They can be a little more vague in the way they describe the light though, depending on the seller (some list total wattage, some say 'full spectrum' etc., neither of which are super helpful in determining light quality). Sunblaster actually has some nice little T5 style LED strips (that I want to upgrade my own T5s to, 😉) but yes, nothing wrong with them at all. In fact, as soon as I get a new light for the 4x4, I will be moving these two no name LEDs I am using as supplemental light up to my germination station on the bottom shelf. They're not great but will work perfect for seedlings/cuttings.

No name LEDs   80W draw

 

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Posted : June 20, 2020 5:21 am
danizeap
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@templegrower amazing answer thank you!

I cant find traditional fluorescent T5 lights anywhere, but I have found someone who can produce LED tube lights.

The tubes are plastic I will ask him if they could be glass, im guessing glass would be better.

Its basically a little LED light strips placed inside a tube. 

Its white light, not full spectrum at all. They come in a variety of wattage with 18 being the highest. I will ask for a personalized job and ask him to place four of them to form a rack and use that. 

Would that be enough for that high temperature need? 

Once again thank you!

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Topic starter Posted : June 20, 2020 5:52 am
Stoney, monkeydo, twisted1 and 1 people liked
TempleGrower
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@danizeap

Hmm, white light is good.. but tough to say without seeing the specs diodes of the hardware but, I'm sure it will be just fine though.

And by 'full spectrum' I just mean between ~430nm and 670nm - the part of the EM spectrum that plants actually use to make energy. White light tends to fit this description, as white light is a combination of all the the different wavelengths seen together. So you should be good!

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Posted : June 20, 2020 6:38 am
Stoney, monkeydo, twisted1 and 1 people liked
danizeap
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@templegrower this is what I ended up getting! 

20 3 bulb LED strips, every strip has 1.5 watts and a temperature pf 6500K 

 

thanks for your help! 

7D4D6CDF FF0C 40F4 BE41 8B0C0CEA447E
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Topic starter Posted : June 20, 2020 8:01 pm
Stoney, monkeydo, TempleGrower and 1 people liked
TempleGrower
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@danizeap

Very cool! And very custom! I like it.

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Posted : June 21, 2020 4:48 am
danizeap, twisted1, Stoney and 1 people liked

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