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That didn't work as well as I had hoped. Still running about 73 degrees. I wonder if these DC water pumps I see are as cool running as they claim? If so maybe they would be just the thing to make this idea work...

So indeed the fan did lower the temps. Only a few degrees, but still something. This led me to one more idea. Since I am using an internal/external pump, I decided to put the pump in its own bucket of water to try to keep it cool while still using it externally for the other bucket. That...

So I am trying some test right now, and I thought I would share my findings. I filled two 5gal buckets last night about 3/4 full with water. one I left just standing and the other I used my 700GPH Danner MAG pump as an external. I just have a short intake into the bucket with a short return...

The LEDs were not top of the line, but not cheap either. They worked OK, but I noticed a HUGE difference with the CMH. Especially with canopy penetration. My colas are much longer and bigger in diameter. I suspect I might get twice the weight this grow. With healthier roots throughout the...

Thanks! I just went from LEDs to a couple Ceramic Metal Halide lights. I am really liking the difference so far! So when you say you were going to go venturi, do you mean you went another direction? It seems to me that if all methods add about the same DO, do the easiest with the least amount...

I hope this image works. I can post more pics if need be. I keep my air pump outside of my tent, so I am not sure keeping it cooler would do much for temps.

I'll see about adding pics later today. Does anyone know how many about how many degrees the external Iwaki pump might add to my reservoir if I run it 24/7? I want to try this setup, but its a bit expensive just to find out it will not work. I have considered getting a chiller, but it just...

I am using an ECO plus 1300 gph air pump. I used stones at first then moved to soaker hoses in circles under each root mass. I will go from having great looking roots and then ill get a little discoloration and sediment. I try to do a water change every week or two, but sometimes it goes...

Hi guys. I am currently growing two plants in a deep water culture in a 120 quart igoo cooler. I have a powerful air pump and am getting decent bubbles. I also have a submersible pump that kicks on every couple hours and moves the solution around. This setup has been working ok for me, but I...

Hi guys. I am hoping to get some advice. I have been growing for a few years now and I really want to get my operation working to the best of its ability. I'll start by describing my setup. I have two gorilla tents, one for starting seeds/cuttings and one for flowering. the seedling one is...