Hydroponics

lorenzo08

Well-Known Member
I recommend going to lowes and getting some larger containers that you can drill holes in.
besides getting them from a grow shop, I haven't seen pots anywhere. they're out of season. I could always put the grow media right in the flood table. I've seen people do that. would give them plenty of room to grow, but makes cleaning harder.
 

gvega187

Well-Known Member
yes I have seen this method in pics also.

pros seem to be

-no pots needed

cons

-many pebbles
-can not move plants to optimize lighting.
-plants roots will tangle & compete easier
 

potroast

Uses the Rollitup profile
when starting from seed, when do you start adding nutrients to the plant. becuase it sems like i fuch up bad.my babies been veg for 5 days and they seem to be a bit small. i added some nutrients earlier in the veg then i stop after reading ome article's . my babies leaves are a little yellow but mostly green. i just redirected back to just plan tap water, until there roots system is strong unuff, is it too late to save them from the earlier half strength nutrients i added ? my lights are 6in above my babies and i am using 125w florecent from hydrofarm. what am i doing wrong. i have 4x4 flood and drain ,using 1 inch rockwool cubes for my 5 day old yougins. help i need help.
I always feed my hydro plants all of the time. The media they go into has been prepped with nutrients, and I continue to wet the medium with nutes.


Hey Potroast, I was wondering what are your thoughts on continuous meters. The kind you leave in the res. to give continuous reading of the TDS, PH, temp. Iam getting some things for my next grow and have been thinking about these. I have RA and it would help to not have to wrestle around with getting readings everyday. Thanks in advance!
I heard those 'continuous meters' are called monitors. I have 1 combo monitor and 2 pH monitors. I prefer them to a portable meter because the electrode stays in calibration much better, and they use AC current, so no batteries to worry about and replace.


I am starting a flood and drain setup.

I have only 1 question:

how much root space do flood and drain plants need? I am using pebbles and starter plugs doing SOG.

Currently I have 25 small 2.75L buckets. Top Diameter is 6.5" and bottom is 5.5". WILL THIS WORK?!?!

That sounds like the size that I've used before. I bought square pots though, because they fit together better, with less space in between that must be filled with nutes.


HTH :mrgreen:
 

potroast

Uses the Rollitup profile
I would want to fill more quickly than that. Remember the roots are submerged during the drain time, too. But if your plants are healthy with it, it will be fine.

This is from post 12:
The type and timing of irrigation in a hydro system should be determined by the medium used. The denser the medium, the longer it will retain water. But that means less room for air in there. That's why dense media like rockwool and coir fiber are used, because of their good water retention, as well as the ability to maintain sufficient amounts of air even when wet.

For dense media, a drip system is best because of the water column that goes downward in a cone shape. Dripping into looser media like growrocks doesn't work as well because the water column is more like a straight-sided tube.

For growrocks, it's best to flood and drain. That pushes all of the stale air out of the rocks, and sucks fresh air in.

For no media, as in aero or NFT, the roots are bathed constantly.

For each system, you should experiment with the irrigation timing to find the optimal for your medium, so your plants always have everything they want.

HTH :mrgreen:
 

lorenzo08

Well-Known Member
I wouldn't mind knowing some solid numbers on the subject. water weight loss before flooding, flood more often for veg or flowering, how long different types of media take to drain/dry..
 

philemon

Active Member
Hi, I'm new here and I need to know something! I've been hydro for quite some time now and on my last crope I caut grey mold and lost everything:0( So now I'm starting new and sterilizing everything. I've been reading alot about it but was wondering what was "grow-medium"? I'm french so I do my best to understand everything! Is it what you grow in such as rockwool or grow-rock? Thank you very much for your time!
 

VictorVIcious

Well-Known Member
Those are a couple of 'Growing Mediums', some other are soil, coco-coir, perlite, etc. and nothing at all but water. The 'medium' you use to grow in is termed, similar to the way television is considered a 'medium' to get information, or a bus could be your 'medium' for transportation. If you can give us some details of what you did we may be able to help. VV
 

lorenzo08

Well-Known Member
Hi, I'm new here and I need to know something! I've been hydro for quite some time now and on my last crope I caut grey mold and lost everything:0( So now I'm starting new and sterilizing everything. I've been reading alot about it but was wondering what was "grow-medium"? I'm french so I do my best to understand everything! Is it what you grow in such as rockwool or grow-rock? Thank you very much for your time!
yes, you're exactly right. the grow-media is what you grow in. rock wool, perlite, stone, sand, air..

mold is always a bad thing.. wipe EVERYTHING down with a disinfectant. try to keep the humidity down in the room to avoid it coming back.
 

Roseman

Elite Rolling Society
In my humble opinion, I think the majority of Hydro growers use Hydrton Rocks, surrounding a rockwool cube.
I use a 'side light" down low, trying to prevent MOLD, along with steralizing everything that I use, in between GROWS.
 

VictorVIcious

Well-Known Member
could someone like make a thread of he items you should get for a Hydroponic system and state the price
Yes, if there were only one hydro system and one medium, can you narrow it down a little, what space you have, what you think your budget will be etc., which of the systems you are thinking of ?? VV
 

twosaws

Well-Known Member
hi i grow dwc and i am flushing with strate water befor i harvest is this nessasery and do i need to keep an eye on my ph level also what should the ph be thanks
 

potroast

Uses the Rollitup profile
could someone like make a thread of he items you should get for a Hydroponic system and state the price
how much does a new system cost?

Welcome to Rollitup, you guys. You'll probably find that not many members will answer a question that is so broad, or one that the answers are just a few posts away. Lots of guys ask how do I grow pot? or how much will it cost and how much bud will I get? Everyone just laughs knowingly and moves on.

My best advice to you is to look around and read a lot.

And have fun :bigjoint:

HTH :mrgreen:
 

potroast

Uses the Rollitup profile
hi i grow dwc and i am flushing with strate water befor i harvest is this nessasery and do i need to keep an eye on my ph level also what should the ph be thanks

Yes, depending on the nutrients that you are using, it's good to run plain water for at least several days before harvest. After 3-4 days you should notice a change in the plants foliage, lightening in color, telling you that the stored nutrients are being used up. If you are using an aggressive load of chemical nutrients, this will clear them from the plant tissue, and remove any nutrient taste from the bud and improve burnability.

HTH :mrgreen:
 
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