Was away.. Came home to off whitish yellow marks brown spots (pics)

[BongboyMMA]

What's up guys I was going away on business for 4 days so I put my girls in an 18gal res bc they started drinking a lot of water and it would have been dry by the time I was bake with 2 gallons of water they were in.

DWC with a sub pump sucking in air and two air stones. I use botanicare pro grow and calMag. They were super green and thriving only a little brown on lower leaves before I started calMag. The morning after I put them into the new system there was big yellowish marks (marks like strips here and there not on the tips and not spots) and one top looked like death but I had no choice to leave. I had my someone keep an eye on the lights and move them but they weren't capable of adjusting or flushing or anythig basically. I posted pics and most said nute burn or pH.

Sooo... I get home and (see pics bellow) the marks that yellow are now like off white and that part of the Leaf feels thin and weak. And there are a few more spots. Along with a yellow tip here and there and some brown on a leaf or two. The only thing I changed other than the size of the res was adding the sub pump and I used aquarium de-chlorinating drops.

My stupid ass. As soon as I walked in I just pulled them out and dumped the res. didn't check the pH. I know my pH had to jump to mid 6s while I was gone. I guesstimated how much water was in the res before I left thinking it less and I added to much nute. But I refilled the res and I was spot on exactly 12 gallons which requires a little more than 6oz of nute so I used 6oz (I know less is more but this is the equivalent to what it would have been in 2 gallons) so I don't think it was a nute issue. I added 4oz of nute to be safe with the full dose of calMag 2oz. pH to 5.5. 5hrs later my pH is at 6.0 adjusted back to 5.5. My res temp is 72 and ambient is 74-76 under 112w cfl. 400w hps will be here in a few days to make the switch.

What should I do.

Cliff notes: yellow marks.

Set up. 112w 6500k cfl. 42 days into veg SSH and skunk. Went on a trip put them from an 4gal res to an 18 so they had enough water and pH would be more stable. The next morning yellow marks. I added the equivalent amount of nute I was using. pH was at 5.5 that night but the morning I saw the problem I didnt have time to check.

4days later see pics. Along with some yellow spots. The roots at the bottom of the nets are brownish but not slimy or smell I believe from the botanicare pro grow I use.
-4oz of nute instead if 6 and 2oz of calMag
-2 air bars 1 sub pump
-pH 5.5
-res temp 72 air 74-76

 

[Weedburger]

Looks like a light burn to me.
What kind of reflector material you'r using on your walls?

If I'm not wrong, I can see a foley under your plant, is that true?

 

[Terry385]

my first plant i wanted to grow was a dwc brownish roots is a bad thing on a small plant leafs looked just like yours as the roots go south
i have pics in my journal the brown will take over the root mass

https://www.rollitup.org/Journal/terry385.845712/

 

[unwine99]

Looks like nute burn imo. Do you have a tds meter? It's such a useful tool for diagnosing problems, especially in hydro. I'm pretty familiar with pbp tho and 6 oz for 12 gallons would average 2 about 15 ml a gallon plus the 250-300 ppms of calmag -- that leaves you around 1000 or so ppm. That's pretty high for dwc. And if you left for awhile and the water went down in the res, who knows what your ppm could have jumped to. I've never gone over 800 ppm in dwc, and that was during the peak of flower. I realize pbp can stain roots -- can you post any root pics so root rot can be ruled out?

 

[BongboyMMA]

Thanks guys I was using 20ml in 5.5l of water I don't have a tds. Will a crappy eBay one do the trick ive heard just save... Here's all the pics thanks for the help. I used 4oz in 12 gal this time with 2oz calMag is that to high? Hps prob won't be here till after the weekend should I just flush a day before I flip to 12/12? They seem much happier and there is no sign of this issue increasing and the pH jumped within a few hours so I guess they're using the nutes and not getting burnt. The room is white and there is a car reflector on the door until I paint it. From pics it looked like light burn to me but I had the car thing up maybe not as close to the ones that are damaged... Ditch that in the am? Will the damage get better. pH was deff out of wack and won't be again...pics

 

[unwine99]

Thanks guys I was using 20ml in 5.5l of water I don't have a tds. Will a crappy eBay one do the trick ive heard just save... Here's all the pics thanks for the help. I used 4oz in 12 gal this time with 2oz calMag is that to high? Hps prob won't be here till after the weekend should I just flush a day before I flip to 12/12? They seem much happier and there is no sign of this issue increasing and the pH jumped within a few hours so I guess they're using the nutes and not getting burnt. The room is white and there is a car reflector on the door until I paint it. From pics it looked like light burn to me but I had the car thing up maybe not as close to the ones that are damaged... Ditch that in the am? Will the damage get better. pH was deff out of wack and won't be again...pics View attachment 3311141View attachment 3311142 View attachment 3311143 View attachment 3311145 View attachment 3311146 View attachment 3311147 View attachment 3311148 View attachment 3311149 View attachment 3311150 View attachment 3311151

Great, I see a little Pythium toward the base but as long as it's not spreading and you have those nice pearly whites floating around -- you're good. It could have been ph too if you said it was out of whack. Man, it looks like you're doing all the right things. You're monitoring the ph and water temps (below 70 is ideal but you can work with 72) as well as the distance of the lights. I think you're correct in lowering the nutes to 4 oz -- especially until you hook up the hps. I would have probably used even less but I'm uber-paranoid about over-fertilizing in dwc. She will recover in no-time; the leaves won't but as long as the discoloring stops and you continue to see new growth everyday, that's all that matters. Yes, cheapies are great. I've had my $20 tds meter that I got from amazon for 2 years now and I've had no issues. The beauty of a tds meter in dwc is this: if your res water goes down and the ppms go up, you know to top off with straight water. If the res water goes down AND the ppms go down, you know you need to up your nutrients a bit. If the water goes down and your ppm stays the same -- you know you hit the sweet spot. It takes the guess work out of fertilizing.

 

[BongboyMMA]

Thanks man! Good to know about the cheap tds deff going to eBay one. Hoping they bounce back quick. It looks like the problem stopped and they are much happier. I'll be happy as soon as I flip to 12/12. Do you think the pythium is due to the temp in the res? I didn't see the temp in the smaller res but I also didn't have the sub pump. Or I'm getting less O2 to the roots (why I added the sub pump) I plan on attaching a pipe to the pump to a pipe that will have a water fall affect and really grab the O2 and hook the hose up that's pulling in O2 to the air pump to really push it in and than only use one big air stone instead of the two cheap ones. How's that sound?

 

[unwine99]

Thanks man! Good to know about the cheap tds deff going to eBay one. Hoping they bounce back quick. It looks like the problem stopped and they are much happier. I'll be happy as soon as I flip to 12/12. Do you think the pythium is due to the temp in the res? I didn't see the temp in the smaller res but I also didn't have the sub pump. Or I'm getting less O2 to the roots (why I added the sub pump) I plan on attaching a pipe to the pump to a pipe that will have a water fall affect and really grab the O2 and hook the hose up that's pulling in O2 to the air pump to really push it in and than only use one big air stone instead of the two cheap ones. How's that sound?

Sounds good bro -- And yup, in dwc, the more air the better. I used the hydrofarm active air 4 outlet with 4 of the large active aqua stones for a rope tub container -- worked great. I would most likely attribute the pythium to the res temps being over 70 -- that portion of the roots won't recover; they'll stay discolored like that -- what's important is that it's not spreading and that your root ball and all the new strands are a nice pearly white. Good luck man.

 

[Terry385]

" pH was deff out of wack and won't be again"

Lol................

 

[BongboyMMA]

Thanks guys here's in update. The roots look the same. And I'm still sitting at 72deg in the res. I'm going to hook the sub pump up to act as a water fall like a planned to and get them more O2 like. Are bigger air bubbles better than smaller ones? I know sounds dumb but I bought a bigger better air stone and the bubbles where bigger. The sub pump bubbles are big so I left the air strips instead of the better one bc the bubbles were finer?

My pH has been on point between 5.5-6.0 and I don't really think the issue is getting worse (when this started I saw it the next morning. Now it's 4 days later and I think I'm just looking at the after affect of over feeding and pH issues. Bc I'll how the pics. I have one or 2 leafs (not the whole fan leaf just 1 spot on it) clawing down.
-N tox right.
There appears to be some brown around the edges of leaves that wasn't there
-nute burn still or after effect?
-several new growth fan leaf stems have shriveled turn purplish and the leaf is hanging on for dear life
-P lock out? Related to the pH not being monitored?

Aside from changing there home. I stuck to the same amount of nutes I was feeding just increased with the volume of water.

WHAT I DID CHANGE- I didn't have enough H2O de-chlorinating so I used aquarium drops...
- I'm thinking that the small amount of chlorine was keeping the roots from getting any rot bc my res temp really hasn't changed and it's just appearing now
-I'm removing all the heavy metals with these drops also, maybe my tap water left out over night had enough iron and copper etc and now the plant isn't getting those.
-possible I don't even have chlorine in my tap it's chloramine and leaving out didn't do anything and my tap water is actually the best way to go.

-should I just use straight tap water? I need 12gal for the res I can't store that much water.

-tds will be ordered as soon as I have a few extra bucks. The wallet is getting tight. But I know it will save me in the long run.

-is the issue due to the fact I'm growing 2 different strains together? (I know I shouldn't have and won't in the future. These were freebies and I didn't think I would make it this far. But I did and I want to get a decent yield now bc I can't afford bud after buying everything lol)
-the plant showing the slight rot actually has nothing on any of its leaves and it started out as the bigger healthier plant. The other took over am grew double the size and the now smaller one showed some caLMag issues. Since putting them in the new set up the smaller one showing some root rot has perfect leaves and has picked up growing.
-so are these girls just fighting each other? And I really should save the big tote for my next run of the same strain when I have a tds and just throw these in 5gal buckets? I lose the sub pump than I just have 1 air stone in each bucket I figure I get more air/$$ spent on multi pumps keeping them together. I was actually going to remove one of the air stones when I have the pump water falling and pulling air from the outside and put that stone in a cloner that I can set right next to this under 42w cfl and take 3 clones from each plant now.

My hps will be here after the weekend it says. Should I jus flush with plain pH tap for 24 hrs before I flip to 12/12 to suck any Nitrogen of them?

Thanks for reading any input is helpful. I've done my homework but I need to check with my professors now

 

[NoDrama]

That leaf damage is minimal, I wouldn't worry about it. Roots look a bit brown, what is the temp of the water?

 

[BongboyMMA]

Ok cool. It's at 72. I'm using botanicare and peeps said they'll get brown but I'm good as long as they don't smell and slime. I feel like it's starting to smell I think the grew tote is letting light in. Gonna paint it. Do you think the chlorine from my tap was keeping bacteria from growing. The one that is brown the plant growth has been exploding. And it's only brown at the top. Should I lower the res level? It's about 2" believe the nets

 

[BongboyMMA]

Ok my hps just got here I want to flip these ASAP I'm not sure if I can get to the shop today for bloom nutes. Should I flush them with pHd tap water tomorrow then make the flip Monday with 1/2 stength bloom nutes? Kinda like a fresh start flushem start fresh. Ditch the aquarium dechlorinator and just use tap?

 

[unwine99]

Ok cool. It's at 72. I'm using botanicare and peeps said they'll get brown but I'm good as long as they don't smell and slime. I feel like it's starting to smell I think the grew tote is letting light in. Gonna paint it. Do you think the chlorine from my tap was keeping bacteria from growing. The one that is brown the plant growth has been exploding. And it's only brown at the top. Should I lower the res level? It's about 2" believe the nets

Ya definitely make sure there are no light leaks and that you have sufficient oxygen to the roots but as far as root rot, there are basically 2 schools of thought for preventing and/or eliminating root rot -- the sterile res. people who use products like h202 and zone -- and then there are the beneficial bacteria crowd who use Heisenberg tea and products like aqua shield -- I've used both and both have their benefits in a particular situation but I've found treating root rot more effective with "bennies", especially with warmer res. temperatures. A good root dunk in a light h202 solution and then doing a res change and adding bennies is a good way to go.

 

[BongboyMMA]

Thanks man I guess it won't hurt to grab some aqua shield when I pick up my bloom nutes Monday.

Any input on my chlorine/tap water thoughts and about flushing for 24hrs before I flip and switch to the bloom formula? I figure if it N-tox in there among other issues with the leaves give her a fresh start with new nutes and it will be in flower so all the N will be used up? Or will this be more of a shock as she's going to get a shock going from 112wcfls for 45days into a 400w hps plus different nutes?

Btw I felt like Xmas morning when the light came so I just threw my c99 real (not freebie) bean into germ

 

[unwine99]

Thanks man I guess it won't hurt to grab some aqua shield when I pick up my bloom nutes Monday.

Any input on my chlorine/tap water thoughts and about flushing for 24hrs before I flip and switch to the bloom formula? I figure if it N-tox in there among other issues with the leaves give her a fresh start with new nutes and it will be in flower so all the N will be used up? Or will this be more of a shock as she's going to get a shock going from 112wcfls for 45days into a 400w hps plus different nutes?

Btw I felt like Xmas morning when the light came so I just threw my c99 real (not freebie) bean into germ

Lol I know the feeling about getting new gear -- it is like christmas morning. I don't know man, some people have amazing results w/ tap water and it seems like they do have less issues w/ rot most likely because of the chlorine but so many more people, including myself, have had terrible results with tap -- but my tap comes out @ 415 ppm. Your water tap is pretty suitable for dwc if it's under 100 ppm I would think but otherwise I would recommend distilled or RO water with either zone or bennies for root health. Plus clean water gives you a level of control that you don't necessarily have with tap because you know exactly what's in your water. Just know that You should not use both chlorinated water and aqua shield together. The flush couldn't hurt if u feel it necessary. The tds meter will help u out so much. If you decide to go with filtered water, keep your ppms under 700 until late flower and only go above if she's telling you she wants more -- it will save u so many problems.

 

[THE KONASSURE]

mix up some ph 7 water with some bennies (when you get them) and some sugar

Leave it to bubble for a few days or hours with a airstone in it

add that to a fresh low ppm ph`d res and the bennies will get to work faster then if you just add the stuff from the bottle

Also trichoderma could be used as its a very aggressive water mold that breeds fast

I try to buy other bennies with no trichoderma in them and use it pure separately because it will out breed most other bennies so its better to use just a small bit after other bennies are established

If you get a fast ph change and some white/clear slime that starts to turn brown then you`ll have some issues brown algae (actually bacteria not algae) that stuff is a bitch, the choice against that stuff if pretty much a zone copper treatment or just go crazy with bennies and hope

It just breeds so fast

 

[BongboyMMA]

Lol I know the feeling about getting new gear -- it is like christmas morning. I don't know man, some people have amazing results w/ tap water and it seems like they do have less issues w/ rot most likely because of the chlorine but so many more people, including myself, have had terrible results with tap -- but my tap comes out @ 415 ppm. Your water tap is pretty suitable for dwc if it's under 100 ppm I would think but otherwise I would recommend distilled or RO water with either zone or bennies for root health. Plus clean water gives you a level of control that you don't necessarily have with tap because you know exactly what's in your water. Just know that You should not use both chlorinated water and aqua shield together. The flush couldn't hurt if u feel it necessary. The tds meter will help u out so much. If you decide to go with filtered water, keep your ppms under 700 until late flower and only go above if she's telling you she wants more -- it will save u so many problems.

Thanks so much man. Yeah I'm just trying to problem solve things I changed when this problem started. And the main thing was that I used the aquarium tap water treatment... Before that I left gallons of water out for - few days so the chlorine dissipated. But I've been reading that I may not even have chlorine in my water and it maybe chloramine. I ridged up volt meter to kinda read ppms but it wasn't sensitive enough to pick up anything in the tap water. Once I added nutes it jumped. Gonna order a 20$ jammy from eBay. My pH. Pen works great it's only 0.2 off every so often

I'm wondering if the tap water treTment shit removed iron and things like that. But when you guys use RO and distilled your not adding all those metals right? What would chlorine damage do.

I'm just wondering what exactly went wrong especially since one plant the skunk wasn't growing and now exploding and the SSH was perfect all along and now has all these leaf things going on.

 

[Terry385]

" brown algae (actually bacteria not algae) that stuff is a bitch "

you got that right

 

[unwine99]

" brown algae (actually bacteria not algae) that stuff is a bitch "

you got that right

It's a fucking nightmare is what it is -- it's fucking Freddy Kruger -- it doesn't die.