dbkick
Well-Known Member
well, I'm not sure, I hate rockwool, can't see the roots. The rockwool looks to have some sort of algae on it to me.
I really need some help
- Thread starter zildgin
- Start date
The algae is normal really. I went and looked again at the plants and your rite there isnt any real nute burnt leafs. Ok so the logical next step is to feed the plants cause this has to be underfeeding. A def of some kind. So yo up the ppm and the symptoms get worse. much worse.. with just a single feeding. So I cant get this wrong many more times before these will be just too far gone to keep.
I can see all my roots they are hanging out of the bottom of the rockwool blocks. Is that a problem?
withoutAchance
Active Member
did u calibrate ur ph metrer properly all looks like ph problems to me.
lime73
Weed Modifier
did you calibrate it when you got it? did it come with a few packages of calibrating solutions?
cannabineer
Ursus marijanus
In my opinion, using a silica supplement with rockwool is redundant. Rockwool leaches useful levels of silica all on its own. cn
Someguy15
Well-Known Member
Take a pipette and stick it like an inch inside your RW cube and suck out a sample of water. Ph that with drops or a meter if you can get enough water. I bet the Ph isn't the spot on 5.7 your rez is. Welcome to the shitty world of big ass RW blocks lol. If it is to high in the cubes you could lower the rez to 5.5 or 5.3, just monitor the water inside the actual cubes, that's where it counts.
tenthirty
Well-Known Member
Can you point me to some documentation on this? I use 4" rockwool blocks and pro-tekt for ph up. Am I causing a problem here?
skunkushybrid01
Well-Known Member
So why do AN think differently? This quote was taken directly from their own website:
+ CAN RHINO SKIN AFFECT PH?
Yes, Rhino Skin is a powerful pH Up formula that can dramatically raise pH, even when used in very small amounts. To ensure that Rhino Skin is properly dissolved and distributed in your nutrient water, add it to your reservoir at least two hours before feeding, allowing it to solubulize. Agitate your water before you administer it to plants.
skunkushybrid01
Well-Known Member
You don't need silica... it's pure bullshit.
NPK and the micros are all you need.
NPK and the micros are all you need.
skunkushybrid01
Well-Known Member
you shouldn't need to use pH up this early in the grow. You also know the rule about not mixing pH up and pH down in the same res... right?
wyteboi
Well-Known Member
he didnt say you were killing your plants , he simply stated the facts about silica. if it works for you then fine dont change it.
soil
wyteboi
Well-Known Member
ok for now.... with your own common sense , not everyone elses..... lower the food , an get rid of the silica for now.
if they are goin to shit everytime you raise the ppm , dont do it again .... yet. they either dont need that much food right now , or the food is bad for some reason.
if you know your ph meter is calibrated (what about your tds meter ? is it reliable too?) then just keep running about 300 or less , with no more silica .... an in just a few days they should start eatin good again. (maybe a week, give or take)
it dont matter if some use 2500 ppm at seedlings , it aint workin for you so leave it where your plant likes it right now.
soil
if they are goin to shit everytime you raise the ppm , dont do it again .... yet. they either dont need that much food right now , or the food is bad for some reason.
if you know your ph meter is calibrated (what about your tds meter ? is it reliable too?) then just keep running about 300 or less , with no more silica .... an in just a few days they should start eatin good again. (maybe a week, give or take)
it dont matter if some use 2500 ppm at seedlings , it aint workin for you so leave it where your plant likes it right now.
soil
wyteboi
Well-Known Member
why on earth would you be using tiger bloom during veg ? (had to , that was kinda obvious)
also , you dont need any calmag right now , at all. your tap has PLENTY of ca an enough mg for now. stop using for now. (not advice its a demand from your plant)
everybody sells a different silica product , and pro-tekt has 3% K in it too , so maybe yours has the added K too.
even if it dont thats too much PK an not enough N for a plant to veg good.
do you have the grow big or the big bloom ?
overall they are gonna be fine , they dont look too bad at all.
soil
yes I did calibrate it.
I desided that its time to sink or swim so I changed the water and did not ad any silica this time just Tiger bloom and GH flora micro a tiny bit of superthrive and a tiny bit of cal -mag.I ran the ppm at 500 And waited .......
The old growth that was already damaged got real real bad. But the tops are getting darker green and they are finally moving again. They were PH locked and starving also.
thanks!
