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In case anyone is interested I found some software that will capture readings from the CHHC-1 and exports the data to an Excel spreadsheet. The software install is in Chinese or Japanese but just press the "next" button and it installs fine on Windows XP. The program itself is in English...

If it starts at the top in the younger leaves then I would investigate the immobile nutrients. "These nutrients are further divided into the mobile and immobile nutrients. A plant will always supply more nutrients to its younger leaves than its older ones, so when nutrients are mobile, the lack...

For flower, I drain the res after the last water during lights on and mix a new batch. Just before the next water (15 hours later) I adjust the pH. At the end of that lights on I usually have to adjust the pH again before it stabilizes. For veg I do the same but there is only about 9 hours...

Did the total liquid amount decrease? I.e. if you have 40 gal of solution did it decrease to 38 gal in the morning? How long ago did you mix up the nutes? What additives are you using? Are you using strictly H&G or you using other products as well? I've noticed that for me it takes about 24...

Yah, and the tech specs for the ecoplus say temp accuracy is 0.1 degrees Celsius... The reason it's a big deal for me right now is that I am fighting a case of downy/powdery mildew. Totally sucks. So i've sprayed them down with mildew cure but the environmental parameters to avoid mildew are...

Nice job on the grow SOG! I read that you got some DJ Short - FLO that you were going to grow next. Just a caution, I'm finishing a batch with FLO, Sour D, and OG K(r)ush that were running on the same res. The Flo likes lower nutes levels than the K(r)ush and and much lower than the Sour D...

It seemed kind of cold in my room so i put an Ecoplus therm/hygro in the room and put the remote sensor right next to the CHHC-1 sensor and most of the time they are within a few degrees of each other but I've noticed at times they differ a lot (like 6 or 7 degrees difference.) Has anyone else...

I have noticed that the nutes lower the pH to about 7 but since I have a hydro grow i generally adjust it to 5.8. Are you growing in soil? Do you leave the pH at 7?

I use two large air stones in my 55 gal res and I also stir when adding the pH down so I think it should be fine. Thanks for the info!

Sorry for the confusion. I was meaning to say to add diluted pH down to the nutrient solution but i guess it didn't come across that way. The process that you describe is what I've been doing.

I was reading an article in urban garden magazine (Nov/Dec issue) that said that adding pH down directly to your nutrient solution "causes nutritional elements to precipitate out of the solution and therefore become unavailable to your plants. To avoid this... dilute 1 part pH adjuster to 100...

Yes. I have a flood and drain system (the ebb & gro) with 4x4x4" rockwool cubes that are transplanted into 2 gal buckets with hydroton. Thank you for the clarification.

:lol: I love that saying. We'll see how long I can deal with it or how soon I free up some cash...

Thanks LB. Your humble opinion is very valuable to me. I don't have the resources right now for chiller but it is now on my wishlist.

These roots have grown through the bottom of the inner bucket and constantly sit in the nutrient solution in the lower bucket. They are still wet with the nutrient solution in this pic so the discoloration is probably a combination of the residual dark nute solution and also from being soaked...

STG is ph neutral so you can use it without rinsing or soaking in a pH adjusted solution. I personally don't think I will continue to use it because you can't water it as often as hydroton. More often watering in hydro is desirable IMHO because you are replacing/mixing the solution that is...

Sure to grow update Correspondence with SureToGrow regarding feeding schedule. My questions to them: I have an Ebb & gro hydro system. I was interested your product and decided to try it out. I currently have some plants in that just started their bloom phase. The plants...

Correspondence with SureToGrow regarding feeding schedule. My questions to them: I have an Ebb & gro hydro system. I was interested your product and decided to try it out. I currently have some plants in that just started their bloom phase. The plants were grown in 4x4x4” rockwool cubes...

Seems like a good plan to me. Can't wait to see how the crop turns out. So far it looks great. Nice Job!

Thx Stoney. That's kind of what I was thinking. I'll be more careful in the future.