White Slime In Rez 2nd Week Flower

My plants are in their second week of flower, and I go to check PH & PPM and I have a lot of white snot / slime floating in my rez. It appeared over night.

Last week [4-5 days ago] I noticed some on my pump filter. I threw it away and put a new filter on. I figured it may of had some organic stuff in it reacting to the h2o2 since it was used even though I soaked everything in h2o2 before using. I didn't think much of it after that until today. I assumed that the h2o2 would take care of it.

I'm running a sterile system with h2o2 added every 3 days and Canna Flora a & b nutes at 1400 ppm with city water at 500 ppm to start. Just a little under maximum to prevent nute burn.
Air temp is always just under or at 80f. This should be good since I have a constantly running 6" intake and exhaust, and the LA air is full of co2 [smog enrichment haha].
I keep my PH between 5.5 and 6.2. That had jumped up over night as well to 6.7 with the addition of the floating snot.
Rez is covered. No light getting in.
I run two foam filters. One on pump in rez, and another on tray to keep hydroton from getting in the supply line. This is flood & drain. The water when in the tray looks fine. No snot in tray. It must be staying in rez since it's only floating on top.

I'm going to try dumping and cleaning the rez, then doubling the amount of h2o2 for first application.
My google search only came up with organic solutions to the problem, and one guy who solved it with h2o2. Since I'm running a sterile system, any organic fix is out of the question. Just wishing it would go away is not an option, although, my google search came up with that as a solution on a couple occasions.

I'm thinking about dumping the system every three days for a while while using a slightly stronger h2o2 mix and a weaker nute ppm. Canna's too expensive to just dump it every three days at full strength, but I don't want the plants to go into shock either. They are all growing vigorously, strong, and healthy with good color, and leaf profile. They appear to be very happy plants!

Anybody running a sterile system have this problem before, and if so, how did you fix it?

p.s. Water temp @ 75f

p.s.s. My h2o2 is 35%

sterile in my opinion is teh way to go. i love dutchmaster Zone. it's basically just chlorine and copper. it' s more long term solution vs h2o2 and it's cheap to use too. hydro store nearby?

can you see the roots? do they look healthy and white?

if your res could be closer to 65-68F that would help too.

which canna flores are you running too? the aqua i hope.

I'll check into dutchmaster Zone. Computer wants to freeze up on my right now when I tried looking at product info.
Yes, local hydro store.
No, roots haven't made it to holes in bottom of 1 gal buckets yet.
I's considering a chiller today since noticing the problem. Wish they were sitting on cold concrete this time.

rkymtnman said:

which canna flores are you running too? the aqua i hope.

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Yes.

if you got the cash, a chiller is hard to beat in hydro. and if you ever wanted to try dwc or rdwc, you've got the main piece of that puzzle on hand already

Just checked the price on those chillers. Wow. No, I don't have the cash for that now. That will have to wait till spring before summer happens.

Just my 2 cents if you can get a r/0 filter to bring your ppm's down to 0-10. It could be your city water. 500 ppm's is high.

keep your eye out on craigslist for chillers. I got mine Cheap.

Update: All better!

All the research I did, pretty much said that it would always return in under 48 hours. It's been 5 days now, and no more white snot on top of rez.

H202 does work for white snot! I doubled the dosage up to 2 cups of 35% for 33 gallons. I usually only run 3/4 cup per 33 gal every three days. I didn't do multiple dumps of the rez like I was going to since it never reappeared.

Instead of doing a rushed cleanup and taking a chance of missing some of the snot, I just dropped in a spare new rez, new pump, new pump filters, and moved to a new table washed in bleach, hot water & soap. When I get a chance, I'll wash out the old rez with bleach, hot water & soap, and let the pump run for a few hours in the tub with the filters to be sure everything is sterile.

The plants are textbook perfect looking!!! Just the smallest sign of nutrient burn on a few leaf tips running at 1300 ppm of Canna. Because my h2o2 is 500 ppm from the tap, I should be able to run up to 1500 ppm. For now I'll just take that as a blessing that will save me a few bucks on Canna nutes. The leaves are dark green and rich looking. I've never seen healthier leaves back when I grew in dirt. The first day, the PH did jump up slightly from 5.5 to 6.0. I corrected down to 5.6, and it never went back up past 5.8.

I need to go get a new air stone. I'm not going to take a chance with the old one since it was in snotville. They are cheap enough to not take a chance with them. The old brand new one didn't work worth a damn anyway. It's been running without the stone all week since my engine froze up on my way to work last week. I haven't been able to get anywhere to pick up a new stone. One emergency after another last week that started with the damn snot in rez. Looking forward to taking the bus to work next week. Haha, yeah, right...

Emergency #2 last week was two leaves with the dreaded PM. It literally showed up over night. They were cut clone fan leaves from when it was at the place I got them from. Cut them off and got rid of them, then did a sulfur burn for 15 minutes to coat the room. The room has way more air circulation than it should need, so I'll just assume that the pm CAME FROM THE NURSERY.

sky rocket said:

Just my 2 cents if you can get a r/0 filter to bring your ppm's down to 0-10. It could be your city water. 500 ppm's is high.

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Yeah, 500 is pretty high. It works for the moment, and makes it so I don't have to add any cal-mag. At least I should never have any mineral deficiencies with it. I'll only have to deal with mineral buildup on everything.

Slime update. It came back. Not a problem. Just upped the H2o2 regiment a little. Apparently, I wasn't using enough between rez changes.

I just went through an epic battle with rot and while the H2O2 was keeping it at bay it was there just waiting to take over. I tried bleach, beanies, SM90. It always came back with in days of stopping treatment. I've been growing in a sterile Res for most of the last 4 years and everything looked great and always had what I thought was a good yield. In trying to rid the rot I hooked up a chiller and started using hydroguard ( sure there are other cheaper good beanies FYI), the rot is gone, the roots are a massive white carpet, and the plants are unbelievably healthy. Never realized until this grow the full potential of these plants. I expect to double the yield from one tray by keeping the water at 65. It took me 4 years to finally spend a bit and the pay back in yield will pay for the chiller in one run.

Budley Doright said:

I just went through an epic battle with rot and while the H2O2 was keeping it at bay it was there just waiting to take over. I tried bleach, beanies, SM90. It always came back with in days of stopping treatment. I've been growing in a sterile Res for most of the last 4 years and everything looked great and always had what I thought was a good yield. In trying to rid the rot I hooked up a chiller and started using hydroguard ( sure there are other cheaper good beanies FYI), the rot is gone, the roots are a massive white carpet, and the plants are unbelievably healthy. Never realized until this grow the full potential of these plants. I expect to double the yield from one tray by keeping the water at 65. It took me 4 years to finally spend a bit and the pay back in yield will pay for the chiller in one run.

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I've been hearing about beanies. What the heck is beanies?

Beneficial bacteria. Look up heisenberg tea.
There's lots of great articles about brewing and just adding the bottled ones.

C. Duke said:

Just checked the price on those chillers. Wow. No, I don't have the cash for that now. That will have to wait till spring before summer happens.

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All you need is a 75L de humidifier from lowes for 200 and change. A few diy mods and you'll have a chiller that will cool everthing you put chilling worts in. Its such a HUGE difference if you have a chilled rez all the time

^^^^^ or look for used ones on classifieds. I just looked and saw a few aquarium ones for $150-200. About what it cost me for a passive glycol loop.

C. Duke said:

Just the smallest sign of nutrient burn on a few leaf tips running at 1300 ppm of Canna. Because my h2o2 is 500 ppm from the tap, I should be able to run up to 1500 ppm.

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The 500ppm from your tap has nothing to do with what you run your nutes at. You shouldn't run a higher ppm just because your tap water is high ppm. The stuff in your tap water is nutrients and contributes to the total.