Shayne010944
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- Feb 12, 2021
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it should be almost impossible to overwater that. Agree with Aqua, increase nutes raise light for now.was running 0.4 ec for first week and slowing have gone up to 0.8ec as i thought they looked hungry .
they seem a little yellow in this system.
watering was 30 seconds every 2hrs ( lights on ) - but i have just changed this to 30seconds every 5 hrs lights on now - no watering lights off
also using GH trio - micro grow bloom. PH at 6.0
Spider farmer 4000 at %50 intensity now and about 32inch high from plants.
this run seems harder for some reason.
seedlings were started in small rockwool cubes and placed into the hydroton
temps around 22-25 degrees celcuis - its been cold here . RH %47-%55 i been trying to get it up more by using a timer on my exhaust to only come on 15min every 1 hr now.
@Moe.Red @Aqua Man
they are only 1 or 2 inch square blocks they very smallHow big of RW cubes?
Yeah id up the ppm to about 1-1.2 EC . If the roots are out of the cubes as I suspect you will need to water much more frequently… like @growsince79 said it would be extremely hard to overwater themthey are only 1 or 2 inch square blocks they very small
Yeah thank you. Just upped it to 1.0 ec and raised the light . See how it takes in next couple of daysYeah id up the ppm to about 1-1.2 EC . If the roots are out of the cubes as I suspect you will need to water much more frequently… like @growsince79 said it would be extremely hard to overwater them
thanks aqua - it seems very light amount of nutes as opposed to having 60 Litres of water in this tank . i reckon ive only got 20ml micro - 20ml grow and probably 10ml bloom in the whole tank.Looking better to me
Sure, lemme look up the Wilma system, never heard of it. Are you 100% hydroton? Pumping 100% of the time?any ideas @Moe.Red
Yeah he is definitely on the edge of cold but under his lights i cant see it being 1f different… if i were to bet id say around 3-5f difference.This is where you want to be environmentally at this stage:
View attachment 1281888
Although this assumes 1*C difference between ambient (which I assume is the measurement you gave) and leaf temp. That's probably pretty close with your light turned down and so far away, but as you get on track and start to pour on PPFD this chart will change for you.
You want to be about 1 kPa right now.
The reason I bring up VPD is that your leaves are curling. Can I get a current measurement of temp and RH, how long the lights have been on, and even better if you have an iR temp gun in your toolbox, shoot the leaf and give me that temp.
VPD sets respiration of the plant. What I suspect is that you are too cold and too low RH at this point. I suspect your VPD is high:
View attachment 1281889
When VPD is too high, you essentially starve the plant even when they are bathed in nutrients. No respiration, no nutes up the stalk.
Obviously there are degrees to this, you are not killing the plant, some respiration is happening. Photosynthesis is occurring. Just not enough.
I'll comment on the nutes after I hear more on the questions above.
yep thats it but i have a 60L tank - 18L pots.Is that the
WILMA XL 4 COMPLETE 25L
Wilma systems - Atami
Complete growing systems for every type of grower! Available in various sizes Lightweight system which makes them easy to transport Stable design, allowing easy placement Automatic watering, which allows a perfect water/nutrition ratio Manual watering is no longer needed FOR PERFECT...atami.com
So basically it is just a res with pots on top and you water thru the 1/4 tubing and it drains to the res, correct?
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