Can't report problems with my reservoir temps because I have never checked them. No problems with algae in the reservoirs, but I have noticed inconsistencies with how the solution ends up looking. I always shake the bottles very well before adding. I noticed a slimy film had developed on the bottom of a reservoir a couple weeks ago. When I went to stir the res the film moved and broke up, but not completely. I use Advanced Nutrients sensi-grow a&b and sensi-bloom a&b as my base nutrients. I use big bud, bud candy, and bud ignitor as my additives. Oh yes, and sm-90. It's a pretty simple regimen. For the most part I just top my reservoir off. I drain, rinse, and refill when I switch to bloom and before I start flushing.
I would veg longer than 26 days if your plant height is not an issue. Veg your plants till they are 35-40% of the height you can have them in flower. Max the size out if you can. Also, try not to top that late in veg. The earlier the better. Maybe week 1-2 and then 10 days later.
The first thing I'm going to change is the flood routine. Thanks for that bit of advice. Second, I'm going to get a thermostat to slap in my reservoir. 65 degrees F, right?
Last, but not least thanks. What is +Rep and how does one go about using it?
The slimey stuff is a form of algae that builds up in those systems a lot. There are a ton of little tricks you need to learn about those systems that can really help.
First off, that algae is builiding up in your reservoir and also in the tubing that leads to your buckets. You really should get on top of controlling your reservoir temps. This will help alot. Also, look into using either Hygrozyme or 5ml per gallon of Hydrogen Peroxide in your reservoir. Between every grow you should take all of your tubing off, your buckets, and reservoir and rinse them out really well. The reason that algae is forming is probably because of the reservoir temps.
Those buckets aren't designed perfectly and so you may notice that water sits in the bottom of the buckets between feedings. This water is stagnant and heats up over the course of the day and later in flower you just have roots sitting in that water. Also, the water that sits in the tubing and in the control bucket is heating up as well. That water can get up to 90 degrees under those hot lights all day and sitting in black tubing and buckets. When the feed cycle comes on you are basically shocking the shit out of your roots with hot water and algae. Use foil tape to wrap your control bucket and the tubing so that it reflects the light.
As your plants get bigger and the roots start to sit in the bottom of the bucket use some PVC cutouts to raise the inner bucket 2-3 inches as needed so that the roots don't hang in the bucket. It also helps to drain the buckets if you place them 2" higher than the control bucket. Use pieces of wood or whatever. Just make sure they are all 1-2" higher than the control bucket. Also, slightly leaning them toward the drain helps to get excess water out.
Check this thread out. Look what this guy did to his buckets.
https://www.rollitup.org/general-marijuana-growing/513182-newb-grow-journal.html
I would change your reservoir once a week and mix new nutrients. This will help a lot with keeping the lines clean and algae free. Also, in the middle of flower run you reservoir on just water like a flush. This will help to leach some of the built up salts in your plants and prepare them for higher nutrient uptake during the last weeks of flower when your buds really start to swell.
I also use Advanced. You should be pushing your plants more than you are. When you start your bloom nutes they should be at 300ppm and then build them up to 800ppm over the course of your veg period. 1100ppm if you do a 4-5 week veg. When you switch to flower then start them off at 800ppm and push them to 1300ppm 2 weeks before flush. Then back them off to 1300ppm the week before flush. This will depend on your strain but if you start to see burn then just back the nutes off. If you don't see any burn then the next grow cycle you can push them a little more. Every strain is different. I started that way and built up certain strains that are getting 1900ppm in late flower and 1300ppm in late veg.
Anywhere between 62-68 and you are good for your reservoir.
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