thanx alot Mr. knowm. i read somewhere that the perfect temp for nute uptake is 68, and anything above 72 is just beggin for root rot. so i try to keep it as close to 68 as possible. it does drop off a bit at night, but it hasnt seem to have any effect on the plants at all.
im a huge fan of the KISS (keep it simple stupid) way of doing things. i set up everything on this grow to be as easy and simple as i could. because its my first hydro grow i check everything daily, but i could get away with checking once a week (prolly every 2 weeks) if i needed to. with the res's being so big i dont have probs with ph swings or ppm drops. im sure as the plants get bigger i will have more of a prob with it, but for now the ph is going from 5.8 to 5.9 and the ppm drops about 50ppm weekly. just about everything in my grow room has a failsafe in place. ive got the air pumps split between the tubs so if 1 does poop out on me the other will still be pumping air to both tubs. i have the lights run to different timers so if 1 goes out the other will still come on and not mess up my hours of light. better to be safe than sorry.
the cost on this grow is waaay high. ive bought alot of stuff i dont need anymore like the small tubs, air stones, and stuff like that. but knowing what i know now i could remake this setup for
50 gallon tub - 13.00 x 4 = 52.00
dual outlet air pump- 10.00 x 4 = 40.00
50 5" net pots- 12.50
24" air curtain- 3.00 x 8 = 24.00
50' of air line- 10.00
100 2"x2" rockwool- 10.00
50 lbs of hydroton- 45.00
and thats for 48 total plants.(around 4.00 per plant about the same as a decent size flower pot for soil grows) i had some stuff like the water pumps already so they were free to me, but about 6.00 at walmart. for 1 of my next grows im going to try either SCROG or SOG and use 2" net pots with 200 plants and no hydroton.(less than 1.00 per plant and faster harvests) i have to wait untill my plant numbers come up enough that i can do that tho.
and the GH nutes i use im trying to tweek a lil bit. i used 3,2,1,(g/m/b)for my veg on this crop, but ive been reading and im going to try 0,3,1 for my next veg. the flowering is set on 0,1,3@1300PPM now and the plants are loveing it. i dont use any additives other than cal/mag+ and on very young plants i add a lil bit of super thrive.
i hope ppl do read this and learn from my mistakes. its sooo much easier to read about how to or not to do something than it is to fix your own probs. i dont know much but im more than willing to help. lol
heres a helpful link on nutes with a cool lil Nutrient Profile Calculator.
CannaStats - Nutrient Profiles for Cannabis