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My tap water has a high PH 8.5 and a zero ppm. I have been letting is sit out in the open about 12-24 hours before I PH and add it to my 5 gallon dwc. What is the standard time for chlorine to be gone? I hear anything from a couple hours to a day?

Wow, is there anything I can do to promote better roots health in higher temperatures? I was thinking of H202 treatments with water change. Maybe hudroguard? Frozen bottles seem like such a hassle lol.

I was playing with the nutrient calendar. Trying to see nutrients reccomendations for 5 gallon dwc. Then I realized I am not using 5 gallons of water. I should maybe calculate nutrients based on 4 gallons? I have the water filled just to the bottom of the net pot. I imagine I should measure it...

My tent temps are around 77 with lights and extraction fan on. My water is 5.6 and temp is 79-80 degrees. Will I have problems? Do I need to start doing frozen water bottles daily. What is te ideal temp for hydro water? Think I have a good understanding of ppms and ph.

Yes. It's barely sprouting out of the rockwool. Good advice thanks. Id rather be able to keep an eye on it.

I was planning on setting up a seedling just before I leave town. However I know you have to maintain or top of water level frequently. If its a small plant, it should be ok 3 days or so right? Since they drink so little at that stage. I have a 5 gallon bucket dwc setup. I was going to set my...

So much good advice. Apartment growing makes me nervous! Make sure to invest in a phresh filter, good carbon. I use an older one during vegging, and a new one during flower. I recently saw some carbon treated filters that attach on the end of the ducting, that may double scrub the last bit of...

Calmag, silica blast, sweet raw for flower

Cool. I have had god results in soil using advanced iguana grow and bloom at half strength. So I wil just use the sensi at half strngth for hydro.

I have a small tent set up for two 5 gallon dwc. Passive intake is near the bottom, and outake through 170 cfm fan at the top. Temps is 79 and 63% humidity. I assume the humidity might get much higher when I add 10 gallons of bubbling water? Do you think the water will get too warm at these...

That is interesting. So you run nutrients right up to harvest. What sort of ppm's do you run max?

Are you saying it's better to run ppm at max 1000 during veg and flower? Or is it more strain specific? I do prefer a clean tasting smoke. I do not run past 3/4 strength nutrients in soil. Is that good for hydro as well? Do you flush your final 2 weeks in hydro?

Thanks for he detailed response. I.am totally new to hydro. I will take your advice and cut that dosage way down.

How do you calculate nutrienrs for a 5 gallon resevoir? I am using sensi two part and the advanced nutrient calculator. If I plug in 19 Liters (5 gsllons) the calculator tells me to use 76ml part A and B. Is that a full strength dosage? I am assuming that I should only use a quarter of that...

I really want to put as little nutrients as possible. I decided to go with that PH Perfect Sensi Bloom A/B Grow for starters. I paid $26 for it online and they charged me once and sent 4 quart bottles, or two sets. Yay for retards! I guess I can just PH after I mix ot up in resevoir. Not sure if...

Thanks for the advice all! I am going to five the tap water a try. I have tested it several times and apart from the high 8.8 PH the PPM is 0. So let me het this straight....I PH the plain water, use PH up pr down to adjust to 5.8. Then add nutrients, and Re PH again to 5.5-6.2?

I think H202 treatments would whiten and clean up your roots.

I keep hearing organics and hydro dont mix well. But I am a total newb at hydro, just setting up. Organic base nutrients have worked great for me in soil.

I just got done testing my local tap water. PH was 8.8 and PPM was 0. I am going to be using 5 gallon dwc buckets.

You dont want to PH the water while it has no nutes first? Then add nutrients and re PH? My tap water is PH 8.8 and PPM 0