i have tried everything to fix these babys.

olly perry

Well-Known Member
hello fellow tokers
they are growing in canna coco under a 250watt cfl . there got to 14days old and started looking unhealthy with yellow spots and tips looking burned so i thought they need nutes so i gave them a weak mix of canna a and b. 21 days old still no growth or inprovement so i have now started watering with plain water and canna rhysotonic 3 days into it and still no inprovement so can anyone please help?
any input its much thanked.
 

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How often are you watering? Those deficiencies are similar to what I had and found out it was caused by damping off which means the soil has to much moisture.
 
a little too often with the illness scare ( i tryed flushed with nute/water then water rhysotonic with one week) im now letting them dry ou to resume normal watering but im pretty sure they were not over watered before they looked bad?
 
hello fellow tokers
they are growing in canna coco under a 250watt cfl . there got to 14days old and started looking unhealthy with yellow spots and tips looking burned so i thought they need nutes so i gave them a weak mix of canna a and b. 21 days old still no growth or inprovement so i have now started watering with plain water and canna rhysotonic 3 days into it and still no inprovement so can anyone please help?
any input its much thanked.
How close is the light? You don't need much wattage for seedlings. It does look like too much water also. Personally, I would use some perlite in with the coco. Kind of large pots for seedlings too. They would take too long to get drier. You don't need more than 3" pots for seedlings.

Also, did you give them nutes before now or nothing and now just a weak nute solution? Because they look deficient. Some people will tell you not to feed them for a few weeks. That's bad advice. I start giving nutes as soon as they start growing. Nutrients will not harm seedlings, if it's in the proper concentration, but lack of nutrients certainly will. How much stored nutes do people think there can be in the cotyledons? They ain't that big. Your plants have clearly been starved. If it was soil, you'd probably be okay, but coco has no nutes in it until you add them. Can't see how starting off plants with a few weeks of starvation could have positive results. More like permanent stunting.
 
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some nice points there. " permanent stunting" so they cannot be recovered? if i started watering them again when they dry out with a a and b mix also adding rhysotonic would this give them the best chance on carrying on?
 
Less is more. You are over doing and over thinking it. Seedlings need very little care. Just don't let the soil dry out. Water it and leave it alone for a few days. If the soil is still pretty damp then wait a few more days to water. The larger the root mass the more it drinks. In that size pot you could probably go 7-10 days without watering a seedling.
 
Less is more. You are over doing and over thinking it. Seedlings need very little care. Just don't let the soil dry out. Water it and leave it alone for a few days. If the soil is still pretty damp then wait a few more days to water. The larger the root mass the more it drinks. In that size pot you could probably go 7-10 days without watering a seedling.
ok ill put a few pictures up next week if they show signs of change
 
How close is the light? You don't need much wattage for seedlings. It does look like too much water also. Personally, I would use some perlite in with the coco. Kind of large pots for seedlings too. They would take too long to get drier. You don't need more than 3" pots for seedlings.

Also, did you give them nutes before now or nothing and now just a weak nute solution? Because they look deficient. Some people will tell you not to feed them for a few weeks. That's bad advice. I start giving nutes as soon as they start growing. Nutrients will not harm seedlings, if it's in the proper concentration, but lack of nutrients certainly will. How much stored nutes do people think there can be in the cotyledons? They ain't that big. Your plants have clearly been starved. If it was soil, you'd probably be okay, but coco has no nutes in it until you add them. Can't see how starting off plants with a few weeks of starvation could have positive results. More like permanent stunting.
they have had nutes for past week the cfl is about 12inch away from the tops equaling zero heat on them.
 
some nice points there. " permanent stunting" so they cannot be recovered? if i started watering them again when they dry out with a a and b mix also adding rhysotonic would this give them the best chance on carrying on?
The stunting may not be permanent, but starting off that way certainly will slow things down for a while. Personally, all I ever use as medium is perlite. I tried coco and didn't like it. It shrinks like crazy as it dries out. Doubt it could be reused many times without a lot of flushing. It tends to compact over time. Just not much that's attractive about it to me, aside from being small when you buy it, so it's easy to carry and store. If you use perlite and any good 2 part nutes it's very difficult to screw up. I use it right from rooting cuttings to harvest, then pull out most of the roots and use it again, over and over. The root bits left in it help hold water. It actually works better when it's been used a few times. Eventually you have to put it in a bin of water and wash it to get excessive roots out. The clean perlite floats and you just scoop it off.
 
they have had nutes for past week the cfl is about 12inch away from the tops equaling zero heat on them.
I guess it's just too wet then. 12 inches away from 250w might be a little close though, if there's a reflector on it. Anyway, good luck with it. It should pull through if you let it get drier. You can tell by the weight if it needs water. Right now, they probably weigh a lot.
 
The stunting may not be permanent, but starting off that way certainly will slow things down for a while. Personally, all I ever use as medium is perlite. I tried coco and didn't like it. It shrinks like crazy as it dries out. Doubt it could be reused many times without a lot of flushing. It tends to compact over time. Just not much that's attractive about it to me, aside from being small when you buy it, so it's easy to carry and store. If you use perlite and any good 2 part nutes it's very difficult to screw up. I use it right from rooting cuttings to harvest, then pull out most of the roots and use it again, over and over. The root bits left in it help hold water. It actually works better when it's been used a few times. Eventually you have to put it in a bin of water and wash it to get excessive roots out. The clean perlite floats and you just scoop it off.
cheers i should be using perlite at the bottom of the pot an a certain percentage mix in the coco . perlite mix with coco on the repot may inprove my finish.
 
Use garden pumice not perlite.

Perlite floats in soil and breaks down into powder over a couple months and clogs soil. Pumice doesn't break down. It aerates soil much better than perlite
 
I guess it's just too wet then. 12 inches away from 250w might be a little close though, if there's a reflector on it. Anyway, good luck with it. It should pull through if you let it get drier. You can tell by the weight if it needs water. Right now, they probably weigh a lot.
no reflector on it yer they still half wet ill wait until they dry out then use i weak nute mix and just hope
 
Use garden pumice not perlite.

Perlite floats in soil and breaks down into powder over a couple months and clogs soil. Pumice doesn't break down. It aerates soil much better than perlite
Yeah just go to the garden supply store and ask for a 100 lb bag of pumice. They'll say try Bath Beauty and Beyond, maybe you can buy 100 callous rubbing stones and break em up with a sledgehammer.
 
Yeah just go to the garden supply store and ask for a 100 lb bag of pumice. They'll say try Bath Beauty and Beyond, maybe you can buy 100 callous rubbing stones and break em up with a sledgehammer.

No need to be condescending just because you're not knowledgeable in building your own soil mix.

Most nurseries carry garden pumice around $10 a cubic foot

20160410_094553.jpg




Or you can order from build a soil for little more money

http://buildasoil.com/products/pumice
 
No need to be condescending just because you're not knowledgeable in building your own soil mix.

Most nurseries carry garden pumice around $10 a cubic foot


Or you can order from build a soil for little more money

http://buildasoil.com/products/pumice

Okay, I didn't think it was a common garden product. Apparently makes a good hydro medium and costs the same as perlite. If it was readily available I'd probably use it instead.
 
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I guess I just never noticed it. Weird you never read about it in any hydro guides. I really hadn't heard of pumice being used in agriculture before. I thought it was pretty heavy and crumbly.

Pumice isn't that heavy. Perlite, like @hyroot said, is to light and floats. Pumice mixes evenly with the soil. You don't hear about pumice because of perlite. But I grow in the ground outdoors and wouldn't put perlite into the ground.
 
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