mittenmedgrow
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Thanks for the tip. I told him after I saw his setup that I didn't like the fact that it leaves app an inch of water left in each bucket stagnate in between watering. Your srstem does not do this with the controller lowered?
Thanks for the tip. I told him after I saw his setup that I didn't like the fact that it leaves app an inch of water left in each bucket stagnate in between watering. Your srstem does not do this with the controller lowered?
Possibly a Mg deficiency caused by these leaves working overtime under all those lumens... How much ml/gal and PPM's of CalMag were in the res when you mixed it last and how long ago did you mix it? You should know these numbers as I discussed this previously. Also some full plant shots would help... Are these leaves from the top canopy? :wondering
Hmmm, next time check the PPM's on the CalMag after you mix that in your res first... Volume calcs of reservoirs aren't the most accurate especially when dealing with hose lines if the water fills those when mixing. Checking the PPM's after the mix and comparing it to a control bucket filled with 1 gal of RO and the same ml/gal of CalMag, can confirm your res volume. I haven't kicked on my 1000W HPS yet, but I suspect that 24" is a bit close for plants this size and early in bloom. Also more N, Ca, and Mg is needed by the plants during the stretch phase of bloom which is generally the first 40% of the bloom duration, or as an example 4 wks of a 10 wk bloom cycle... :thinking
That's exactly what I'd do... I realize that you are using 0.7, whereas I use 0.5 so I'd aim for 200 PPM of CalMag max at this point using my conversion factor... I will always speak PPM's in terms of 0.5 conversion to EC. Maybe in the future I'll speak strictly in terms of EC... :thinking
Ok diagnosis time..this is occuring in the fan leaves on some of the plants in the corner of the room. They are recieving the most light so i thought it might be bleaching but maybe its some sort of nutrient defiency.. Its occuring on only the plants in the corners of the room though..Any thoughts??
I know that EC is universal and my Hanna 98129 combo meter measures in EC as well as PPM's, pH, and water temp. To be honest I'm comfortable with PPM's and have no need to worry about Europe in my small little garden... :giggleI think EC is more universal. The threads im reading in europe are more based on the EC and .7 conversion. Seems the .5 is the more americanized version..Luckily my hanna does them all, with ph and water temp combined!!
I know that EC is universal and my Hanna 98129 combo meter measures in EC as well as PPM's, pH, and water temp. To be honest I'm comfortable with PPM's and have no need to worry about Europe in my small little garden... :giggle
The only plants this is occurring on are the ones in the corner of the room which are recieving the most light and from all angles.It's very hard to diagnose a plant when you don't have all the information at your finger tips. If you fill this out i promise we will be better and faster at telling you what your plant's problem is.
What is the Ph of your nutrient solution?
What is the PPM/EC of your tap water?
What is the PPM/EC of your nutrient solution?
What is the temperature of your nutrient solution?
Does your PPM/EC show a rise or fall when you do your daily PPM check?
Does your pH show a rise or fall when you do your daily check?
Do you foliar feed or spray your plants with anything?
How close are your lights to the plants?
What is the temperature and humidity in your grow space?
Have you noticed any insect activity in your grow space?
what location on the plant is this happening?
(top middle bottom?)
Would help to see a pic of the entire plant with the leaves on it and where it is located in relation to the light, can you provide one?.