two weeks in and would like some advice!

[Jbomb83]

yo. I am currently two weeks into growing some feminised white russian.

using a 1.2x1.2x2m grow tent

venting hot air out from inside is a 6" carbon filter connected to 400w hps lamp inside a 6" cool tube to 6" inline extractor fan with an extraction rate of 650 m3/h. cool air inflow provided at the bottom from a 4" inline fan outside the tent from a window. the top corner inside tent has a large desk fan diagonally angled down and inward, with another desk fan at floor level.

using a flood and drain system with four 10 litre pots, growing medium is clay pebbles, using rockwool to root the plants in, with 1 plant per pot. reservoir is currently holding 40 litres of water with a ph fluxing from 5.2-6.0 as the day progresses. flooding every three hours. just added nutrients a few days ago - im using canna hydro a+b at 1/4 of the strength recommended.

the temperature inside is a steady 26c never rising or falling more than a degree or two with an average humidity of around 45%.

so far everything is going well and the plants are looking rather healthy. vibrant green, nice fat stalks, very close node spacing. however some of the fan leaves are curling up and some curling down.

im pretty sure its not the temp, cool tube sorts that out and using hand test the radiant heat is very low at their level. im thinking the introduction of nutes few days ago was too much and shocked them even at 1/4 strength. since then ive added another 10 litres of ph'd water so its diluted further. also they've doubled in size in the last few days so must be eating nutes up too. current growth rate is looking very healthy. they certainly arent being stunted from it.

my questions are- do you think i over fed them?
- other possible causes?
- do you think the diluting and plant eating will have been enough to prevent needing to completely change reservoir?

im sort of feeling i should ride it out - i reckon they'll kind of smash past the initial shock and everything will begin levelling out. soon being at the point where i cant feed and water them quick enough!

thoughts?:cool:

[martyrprojekt]

Allright jbomb83 with one post...since you are obviously a nube I will be nice. Follow these instructions and people will respond:

1.) Pictures are most helpful.
2.) using the trouble shooting form is a must
3.) reading the other posts, endlessly researching the forums to answer your own questions before you post is an excellent idea.
4.) Go through peoples grow logs and see the mistakes they have made, and learn from them
5.) Before you start your next grow cycle...please make sure you follow the cardinal rules...Location, security, loose lips, etc. (all nubes seem to skip this and tell all of their friends what they are doing. "Hey Man...can you keep a secret.")
6.) Sit back and watch the grass grow.

Peace...once you have done that you will be on your way to becoming a novice. Sometimes you have to kill a crop (or 10) before you can become a master grower. Have fun!:jointsmile:

[Jbomb83]

hey, yeah navigating this site seems a bit confusing, only signed up few days ago.

thanks for your reply.

unfortunately no camera to take pics with for now:wtf: but will asap

dont worry, im keeping it well on the quiet always do. this is the first ive spoke of it

I think you've misunderstood -ive done many crops all very successfully overcoming obstacles on the way, through long research and hard work over the years. however there is always things to learn and personally i havent encountered curling leaves at this stage before. generally i spend a great deal of time preparing and planning before hand to so usualyy have relatively few troubles.

just feel asking someone can sometimes be more useful than just reading etc, especially as there are various problems than can have a very similar effect, and each different strain combined with different environments is gonna influence this. am trying canna a+b for first time. id pretty much decided nutes were the issue but just wanted a few other peoples opinions/input based on the environmental and genetic details i had written

ive never had to kill a crop in my life lol!

nice one mate, happy toking!:thumbsup:

[keylime]

From what you are saying, I'm guessing you are not far off from doing everything correctly. However, you are guessing as well. Your water schedule is a bit more than necessary. I have a similar systems and I water every 4 hrs. But 3 hrs are ok, as long as you are using hydroton or clay pellets. You might want to be careful about not putting the little starters in there if/when the roots are not or barely coming out of the rockwool cubes. They hold a lot of water, and are not meant to be watered that often. I have found that removing as much of the rockwool as possible so the roots are get lots of air really helps, once they are boying that stage it's not that important.
You need to get yourself an e/c or PPM meter so that you know where you are with the nutrients. It's a $25 investment that will more than paying for itself. Once you mix the nutes with the water, you will be able see how strong the solution is. You have to know where you are in that matter. Check them out on E-bay.

keylime


yo. I am currently two weeks into growing some feminised white russian.

using a 1.2x1.2x2m grow tent

venting hot air out from inside is a 6" carbon filter connected to 400w hps lamp inside a 6" cool tube to 6" inline extractor fan with an extraction rate of 650 m3/h. cool air inflow provided at the bottom from a 4" inline fan outside the tent from a window. the top corner inside tent has a large desk fan diagonally angled down and inward, with another desk fan at floor level.

using a flood and drain system with four 10 litre pots, growing medium is clay pebbles, using rockwool to root the plants in, with 1 plant per pot. reservoir is currently holding 40 litres of water with a ph fluxing from 5.2-6.0 as the day progresses. flooding every three hours. just added nutrients a few days ago - im using canna hydro a+b at 1/4 of the strength recommended.

the temperature inside is a steady 26c never rising or falling more than a degree or two with an average humidity of around 45%.

so far everything is going well and the plants are looking rather healthy. vibrant green, nice fat stalks, very close node spacing. however some of the fan leaves are curling up and some curling down.

im pretty sure its not the temp, cool tube sorts that out and using hand test the radiant heat is very low at their level. im thinking the introduction of nutes few days ago was too much and shocked them even at 1/4 strength. since then ive added another 10 litres of ph'd water so its diluted further. also they've doubled in size in the last few days so must be eating nutes up too. current growth rate is looking very healthy. they certainly arent being stunted from it.

my questions are- do you think i over fed them?
- other possible causes?
- do you think the diluting and plant eating will have been enough to prevent needing to completely change reservoir?

im sort of feeling i should ride it out - i reckon they'll kind of smash past the initial shock and everything will begin levelling out. soon being at the point where i cant feed and water them quick enough!

thoughts?:cool:

[Jbomb83]

hey thanks keylime,

i am growing in hydroton clay pebbles, so the drain leaves it nice and dry with lots of fresh air sucked in around roots. i do like the stability given from a rw block but also see what ur saying- good idea removing as much rockwool as possible early on, will try that next time round. roots were developing well out the bottom though before potting, so im sure the roots are well into the pebbles now- i started them on one flood a day when first potted and have increased every few days to once every 3hrs.

i know i need a ppm meter to fully verify whats going on, like you say till then i am just guessing- never having one Ive always gone on the principle that using a 10% weaker solution than stated on bottle will keep the ppm within a suitable limit to prevent overfeeding during full feeding stage and starting with 25% strength when first introduced to system is usually weak enough. . am still new to canna a+b!

again thanks for ur feedback, was positive. first time ive had trouble in this area so was bit concerned. you've given me the push to order a meter, i know it is essential, with massive benefits.

peace out:thumbsup: