fist grow and have a few question/issues. 1st, second week into flowering. my res ppm continues to rise. i'll start it off around 1250..(recommended by manufac) and in about 3/4 days im well over 1500. ph is around 5.8 and steady. ppm is the only issue there. running flood n drain system. whats the cause and how do I resolve/prevent this? 2nd the bottom of my plants seem to be dying. leaves are really dry and brittle..top seem fine though a lil droopy and a few spots though. as far as setup..room about 4x4. 600 hps. 3 plants. lights about 12 inch from tops. water went from flood 3x a day to about 5 for 3min. rookwoll cudes in clayrock medium. temp about 80/85. one 6inch inline around 400cfm and one 10inch osc fan. veg I run 6 fluorescents on 18/6...could that be and issue..shock?
newbie questions...bear w me
- Thread starter ag843
- Start date
superstoner1
Well-Known Member
When your ppm rise then the plants are taking more water than nutes and the ppmis too high. You really want to start at about half of manufacturer says. Cut it down to 750-800 and see.
Also, why do you have a bear with you? Aren't they dangerous? It could eat the plants
Also, why do you have a bear with you? Aren't they dangerous? It could eat the plants
ahh I c.thank you...should I do a flush and start from scratch? lol @ your "bear" comment...
Malevolence
New Member
Our cat is a fuckin fiend for some dried pot leaves. If I leave the closet open he will go in there and sit at the tent and meow. We call them tiger snacks.
tusseltussel
Well-Known Member
super stoner got this one... your ppmis too high and its drinking water at least thats how it always worked for me, I havn't done hydro in at least 5 years but it should still be the same. rising ppm means too high drinking lots of water means too low. the bears I met in NYC were the nicest people you ever wanted to meet, you should be safe
hotrodharley
Well-Known Member
What the hell is the matter with you?
Murphio
Well-Known Member
Definately drop the ppm. If water uptake exceeds nutrient uptake then nutrient concentration goes up or you can refer to that as increased ppm. Don't go by label recommendations, go by what your plants ask for. If your ppm remains stable day to day then your plants are drinking and feeding at the same rate, this is what you want. If ppm drops day to day then add nutrients, this is a good sign that your plants are hungry.
I'm curious what size rock wool cubes are you using?
ok flushed and dropped it down to 800, gonna monitor it from there..i'll let u guys know what happens. also my humidity was way low. i was only @ 25% and to my understanding i should be a least at 50. probably had something to do with leaves curling and looking dried out. just went out and bought a humidifier to try to bring it up and see how that goes as well. thanks for all the input and all other help is appreciated. using 4inch cubes at the moment although they aren't too much looking like cubes anymore...lol
Murphio
Well-Known Member
Nice, sounds like you're getting things done. Ya I keep my humidity 40-60%.
Be careful with that big off rock wool in clay pellets. I used to do the same thing until i realized that I was getting root rot. I now use the 1 inch starter cubes then put those into the clay. What happens is that the big rock wool cubes always stay soggy and moist, but the clay drys out quick and needs more watering, so you get a conflicting demand for water between the two different mediums. Try it next time, I guarantee you will see improvement. Happy Growing!
Be careful with that big off rock wool in clay pellets. I used to do the same thing until i realized that I was getting root rot. I now use the 1 inch starter cubes then put those into the clay. What happens is that the big rock wool cubes always stay soggy and moist, but the clay drys out quick and needs more watering, so you get a conflicting demand for water between the two different mediums. Try it next time, I guarantee you will see improvement. Happy Growing!
Murphio
Well-Known Member
Ya you might damage the roots if you rip them. I tried that and it did me no good. Just change it up your next grow. However since you're doing a flood n drain try to adjust your flood level so it barely touches the bottom of your cubes so that way you're still drenching all the main roots in the clay and you would be allowing that big chunck of rock wool to dry out a little.
It took me 2 grows before I realized that the big rock wool was a problem in the "airy" clay. I'll send you some pics tonight of what I mean. Your plants will still be fine as they are now, just switch it up next time.
It took me 2 grows before I realized that the big rock wool was a problem in the "airy" clay. I'll send you some pics tonight of what I mean. Your plants will still be fine as they are now, just switch it up next time.
Murphio
Well-Known Member
Can you send a current pic of the ladies just so we can get a better idea of what the problem is.
Here's what I mean, if your going to continue in clay or something else that's airy, do away with the big rockwool and raise them up from cuttings/clones in starter rockwool then put that into the same medium that you will be finishing out your grow in.
I just recently switched from clay to course perlite, the clay was a bitch to clean and its more expensive. So I guess time will tell if they like it or not.
View attachment 2527905View attachment 2527906View attachment 2527907
You can't see the 1in. cubes, but they're there. I never get any over-water or algae issues with this method. Try it out next time.
Here's when I was still in clay. Once they get big enough, I place the 4 in baskets in 3 gal. airpots where they finish off the grow.
View attachment 2527916
Here's back when I used the 4in rockwool. Rockwool is great to do hydro in if you only use that as your medium though.
wow..thats exactly how my setup looks with the rocks..guess I was doing something right..lol. sooo...I fig out what my issue was...ROOOOT ROTTTT! big time..every plant. had to get some h2o2 and go to work on those things all night. the good news is though that I now have a chance to take all the plants out the 4inch cubes cause I cant do anymore damage than already done to my roots. so...that's what I did. took em all out the 4inch cubes and only kept them in the starter cubes I started with.. they are now in repair mode. hopefully they'll come back in a few days and start showing signs of new growth. I really appreciate all the help and info. I def with keep you posted on future progress...