thanks for the math lesson guys. on my first flood table now, have had the clones in there 2 weeks and havent seen any growth yet. not even roots coming out the bottom of my 6 inch pots. im so frustrated with this, ready to go back to soil where i was seing growth everyday
Sounds like overwatering. What medium, watering system type & watering schedule are you using?
Al...your the man....got my trays up an running now...after spending many days reading this thread.
Hard part now is waiting 60 days....dang clones are 12" tall now after only 2 weeks!
running 3 trays on 2600w
Thanks. All sounds as it should be. Good luck.
using hydroton, 30 gal res running lucas formula at 8-16 at 900ppm and my tap water is naturally 150 ppm. only thing i added was h202 was flooding 3 times during the 12 hour light cycle but just jumped it up to 4 times. hard to tell if there getting nute burn do to the yellowing tip from cloning. just dont see any new growth in almost 2 weeks, its insane
What medium did you use for cloning? RW cubes? If so, are the bottoms of the cubes above the flood level? What persuaded you to use 'Lucas formula' instead of standard mfr's instructions for nute mixtures?
My next batch of clones just all shitted on me for the first time and i got to get this thing going or ill be homeless in 2 months. tight time schedule. almost wishing i had stayed with soil.
The usual cause for failure of clones is overwatering.
Water temp? Warmer temps lead to root issues.
It can, but I think there's something else going on here.
i dont even know the exact temp of my res. but with h202 regualrly and planty of air stones i was under the impression it wasnt that critical.
Water temp isn't generally critical unless it's way wrong.
I appreciate others trying to answer queries, but when they're directed at me, please leave them to me to answer. Yes, I'm not always able to get to queries every day, but I do the best I can.
To tell you the truth...I have been on a super tight budget lately due to lack of construction work.
Here's what I am running.
GH test kit(a few drops into a half full shot glass)First my water from the well is in the green range,so I mix 4 gallon batches.I add 5ml PH down.This brings the water into the yellow zone(5-6)
on my clones after they root(over in the clone room)I have 7" pots waitng for them in a tray(botanicare)that holds 49 pots.I fill the bottom of the pots with rock wool to stop the perlite from escaping.the 1-1/2"rw cubes ar showing roots and go into the pot.they are fed 1/4 strength part A and part B.
res is filled with 35 gallons.12/12 light cycle
flood once aday until the tray is 2-3" deep
"A few drops" is not a precise enough method for nute concentrate measurement. You need a decent graduated cylinder or measuring cup for nutes as well as a 10ml syringe for measuring pH Down, which is normally used in ml quantities (I only need 2ml in 125L when mixing up a fresh tank of nutes.
Also, colour matching pH test kits are simply not accurate enough; it's just not good enough to know pH is between 5-6. You need 0.1 resolution. Get a good electronic pH meter.
I prefer Eutech's waterproof pH Tester 10, though there are other good, reliable meters. Avoid Hanna meters. Don't buy cheap meters- you get precisely what you pay for- and cheap is false economy. Make sure you have at least pH 4 & 7 reference calibration solutions on hand and calibrate your meter before
EACH use. Keep the probe tip damp by putting a bit of dampened sponge in the meter cap. Sterilise the bit of sponge with a strong (1ml 50% H2O2 in 9ml water) H2O2 solution once a week. Use the glass probe cleaner provided with the pH meter once a week. If you see fungal growth on the pH probe tip, clean with aforementioned H2O2 solution & an old toothbrush.
Thanks Al, I've built rolling trays for the new op that will allow just that. Those are just 3'x4, wooden tables, and the reservoirs pull out quite easily. The panda film is just to keep the light out. With these new rolling trays, I'm thinking I'll rotate each tray every 3 days, instead of moving individual pots. Hopefully, this will keep growth even and avoid any hotspots.
Sounds OK. Good luck.