View Full Version : Reservior water temp.
Noatec
12-13-2009, 06:03 PM
Hey all...
Where is the best place to find answers to basic questions for beginners?
I find even in the Q&A things are hard to find.
How important is the water temp in the reservoir?
It's a bit cold in the basement right now.
My 4 plants have been in grow for about 2 weeks and look healthy and happy, but seem to be growing extremely slowly.
I have to wait until after Christmas to finish the two remaining walls on my grow room. I'm sure things will warm up once finished.
I thought I heard a guy ask for a reservoir heater last time I was at the hydro shop.
tinytoon
12-14-2009, 12:10 AM
res temp is best in mid sixties but you dont want air temp below 65f
Noatec
12-14-2009, 01:54 AM
I would estimate I'm running about 5 - 10 degrees below that. I'm center basement next to the furnace which is the warmest place in the basement. I'm still putting up walls, once I get them and the panda wrap up things should warm right up. I was going to do that today, but I hung out with my boy's instead. Now I'm on another planet so tonight is done. At least I have my priorities in check.
Oh, back on topic, got a programmable space heater if I need it.
I've read that temperatures closer to tropic conditions work best.
Thank's for the info.
tinytoon
12-14-2009, 12:25 PM
stick a thermometer next to one of the plants and see what your air temp is, I'm betting they are to cold. Cold temps is on the top 5 for slow growth in my book. If not done already look through the Basic Growing area and get a lil background and then skim through posts in Hydro area to fine tune things.
LOC NAR on probation
12-14-2009, 12:33 PM
Rez temps should be 68 degrees for max oxy in the water. Listen to tiny and get your self a fishtank heater that can be adjusted. They come in watt sizes to fit the tank. Make sure it can be adjusted to 68 degrees. Then wheather you have walls or not it will keep your plants right.
SpaceNeedle
12-14-2009, 11:52 PM
Also, if you have the res sitting on the cement floor, you are picking up temps from there. Try putting a sheet of Styrofoam or even a sheet of plywood between the res and the cement. Makes a difference of 2-3 degrees.
sn
Noatec
12-15-2009, 02:17 AM
I put my res on top of a cooler and surrounded the whole thing with a space blanket. Temp is just below 80 now, It started to go past 80 until I turned the fan on. They literally seemed to come to life right before my eyes, it was pretty cool actually. I was up until 4:00 this morning reading forums. I'm going to move my grow log to the forum section. Lot's of great help on this site.
Thanks for all the info, I'm sure I'll need more.
Here's a quick link to my grow log if you want to follow.
http://boards.cannabis.com/grow-log/178749-noatecs-g33k-grow-long-time-toke-first-time-grow.html#post2047213
achilles
12-15-2009, 03:35 AM
no intention to thread jack, but do these "mid 60s is best" temps apply to bubble closers as well?
tinytoon
12-15-2009, 11:52 AM
I guess we left that extremem out, dont want temps to go into 80's. depending on how you are growing, 80+ in DWC = root rot most of the time.
LOC NAR on probation
12-15-2009, 04:42 PM
no intention to thread jack, but do these "mid 60s is best" temps apply to bubble closers as well?
If you mean bubble cloners then no. They need to be a little warmer for roots to start quick.
Farmer Rich
12-15-2009, 05:29 PM
Aeroponic cloners like 75 degrees for new roots. This is pretty easy to control with a digitally controlled seedling mat under the cloner.
You\'re reservoir temps for growing should be in the 60-68 degree range. Once you have a high humidity environment (in the root zone) and start getting above 68, you have the perfect conditions for phythium (root root) to grow and take out your garden..
Peace,
Farmer Rich
Noatec
12-15-2009, 05:53 PM
I'll get a therm after work, but I'm sure the rez is nowhere near 80. That was top with light on.
the image reaper
12-15-2009, 06:04 PM
I've used cheap aquarium heaters, factory pre-set at 75 degrees F, I had no issues with those, nice roots (but, a bit cooler, would be even better) ... :smokin:
Noatec
12-15-2009, 06:55 PM
Image reaper, that double pot is trick. Where can I find the same.
GetThisOrDie
12-16-2009, 01:32 AM
Does the gallon rating on the tank heaters matter? Like if I find one that can be adjusted to 68f does it matter if its for a big tank? Or would I need to find the smallest one? I might need to look into getting a couple of these for my current grow.
LOC NAR on probation
12-16-2009, 12:26 PM
Alittle bigger than tank size is OK. Most have a max and min size listed. Just be close. If you get one too big it may get too hot. Remember the watt size means hotter.
Noatec
12-16-2009, 03:20 PM
checked temps this morning. Rez=60 canopy=79
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