Res Temps

hey yall, ive read a freakin truck load of stuff about bubbler setups, and cant seem to find 1 thing. how low is the lowwest you want the res temps to go to over a 1 night time period. ive read that mid 60's are perfect and over 70 will cause root probs and possibly algy. i have no probs keeping my res under 70, but it does drop off a bit at night. what i need to know is how far down it can drop without giveing me any probs.
i can get the res to a more even temp if i have to, by getting the res off the floor. but i would like to wait untill i change my water. ( next week)

i think you have it right on the money cause if the res temp is to cold than it will shock the plant. i usually had mine at 68-70

TH - Go to a pet store and pickup an aquarium heater... like $30 bucks. Makes it really easy to regulate the res temp.

the only time the resevoir temp matters is when you are watering. Are you watering at night when the temp is down??

30.00 a heater x 10 tubs isnt the way i wanna go. i was just wondering if any1 knew how much the temps in the res can drop at night without causeing shock.mine have moved as much as 10 degrees (from 67 down to 57). they havent showed any signs of shock yet, but id like to know whats safe.
i havent had to add water yet.(small plants in big res's) i change out the nutes/water 1 time a week. and that water level doesnt drop more than 1/2" in that week.

th3bigbad said:

30.00 a heater x 10 tubs isnt the way i wanna go. i was just wondering if any1 knew how much the temps in the res can drop at night without causeing shock.mine have moved as much as 10 degrees (from 67 down to 57). they havent showed any signs of shock yet, but id like to know whats safe.
i havent had to add water yet.(small plants in big res's) i change out the nutes/water 1 time a week. and that water level doesnt drop more than 1/2" in that week.

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does that mean u have 10 air pumps???can u post some pics????i have no clue how u set up ur system but 10 bubblers sound wicked...anyway its Winter here aswell (cold as fuck about -2º outside) the water runs from the tap at around 16º and i havent had any probs with the girls so far...never got temp shock EVER...so unless u´re using really cold water or u have the tubs on a really cold floor, water temp shouldnt be a prob.

I would get one or two layers of the underlayment for wood floors. At Depot stores its like blue and rather thin but 'foamy'. Lay that under the the tubs and it should help insulate from cold floor. I would LOVE to see this setup!

thanx yall, yes i have a 10 tub bubbler setup, but its not near as impressive as it sounds. ill get some pics as soon as the lights come back on.
its 8, 25 gallon rubber made tubs 6 plants in each (4 for veg and 4 for flowering), and 2, 15 gallon tubs that are made to store junk under your bed that have 12 plants in each.
this is my first run at hydro so its not all up and running yet.i just took a ton-o-clones that im waiting to see whats female. once i get that done it will all be running.

ok heres a few pics from the clone/veg area. in the first pic you can see 1 of the 15 gallon tubs (12 plants in each 15 gallon tub x 2 tubs lit by 4, 4' floros). i just use those for clones that just have just started to have roots comeing out of the rockwool. they will stay in that tub as long as the roots dont start to tangle.
then they go into 1 of the bigger 25 gallon tubs (6 plants per tub x 4 tubs lit by 8, 4' floros) for vegging. i keep those tubs in a 6'x3'x3'(LxWxH) cabnet where i can control the temps alil better.
once they have vegged to a good size and got plenty of clones i drain the tubs completely and just slide the plants tub and all into my flowering area(lit by 2, 1000watt hps). i take the 4, 25 gallon tubs that had flowering plants in that just got harvested back to the veg cabnet and start all over.
the last paragraph is what i hope will happen.(i havent made it that for with this grow yet). i will start the flowering room in 1 week.
anywhoo, yall see or know of anything i might run into probs with? this is still all new to me so any help would be great. ive been working the bugs out of this setup from day 1, and there has been quite a few. but so far so good.

th3bigbad said:

30.00 a heater x 10 tubs isnt the way i wanna go. i was just wondering if any1 knew how much the temps in the res can drop at night without causeing shock.mine have moved as much as 10 degrees (from 67 down to 57). they havent showed any signs of shock yet, but id like to know whats safe.
i havent had to add water yet.(small plants in big res's) i change out the nutes/water 1 time a week. and that water level doesnt drop more than 1/2" in that week.

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That's a HUGE waste of nutrients, IMHO. You can just top up the rez with RO water, then watch your PPMs. You can always add 1/4 strength of new nutrients when needed. Most of my friends (long time hydro growers), including me, go through an entire veg cycle without changing the rez. Same thing for the flowering cycle, except for the final ten-day flush.

Vi

ok so how long can i do this. i mean if i veg for 2 weeks or 2 monthes all ill have to do is add nutes to keep the ppms up, and add water? if so that would save me a ton of time and money. but wouldnt the plants use more of 1 kind of nute and less of others? how would i tell exactly what they need?

th3bigbad said:

ok so how long can i do this. i mean if i veg for 2 weeks or 2 monthes all ill have to do is add nutes to keep the ppms up, and add water? if so that would save me a ton of time and money. but wouldnt the plants use more of 1 kind of nute and less of others? how would i tell exactly what they need?

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Yes plants use more of certain nutes then others depending on the cycle they are in..what i do is i follow the directions of nute usage on the labels if i do it correctly the plants wont show any signs of nute burn or deficiency...so as long as u keep the water pH right all u need to do is to wait for the leafs to give u a feedback on whats happening...check my sign there is a plant abuse chart that shows u with picks the major problems that u can find in a plants life cycle...peace