Feeding in flood-n-drain

hydrogreen65

hydrogreen65

Well-Known Member
Is it better to feed at more frequent times for shorter duration? Or less frequent for a longer period.
I have been feeding 5 times at 15min flood times during flower.
Just curious as to the times people feed at in this type system.
Any input will be appreciated
 
Sorry for delay Deetee, was hooking up new tray and res.
I'm running a flood n drain system with 2x4 trays. I cut pieces of plywood to fit upper part of trays that keep net pots about 2 in off bottom of tray. It keeps root zone cooler and allows more root growth.
I use hydroton as medium in net pots. If you want a pic to get better idea I'll be glad to take 1 for you.
 
lets see a pic, but if u got them in net pots an can lift them easy way to work out is weight a net pot dry an wet drain an wait just before gets dry then u know.

room temp an humidity an size of the plants will play a big part in this so there is never a perfect answer
 
I've used hydroton and currently using rockwool grow cubes, both absorb very well, tho I grow in pots I only feed twice a day, and the medium doesn't dry out a bit, not sure it's needed to flood for 15 mins nor 5 times a day, but that's for you to decide, as long as it works for you.
 
I got rid of all the rocks, perlite and the mess by dropping a slab of rockwool in a tray and growing on it. Once a day 3 litres of nutes, either top feed manually or flood the tray once a day. One 12x8x3 slab will hold a pound plant easily, even watering only once a day...JAS
 
Hey, I finally got it. The1 pic is of a tray I'm not using. The other is what it looks like in use. When I put plants in I cover the whole tray with panda to keep light from root zone.
 

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Nice! 5-15 min. floods sounds about right. As long as ALL your roots are getting wet with the flushes I would not change a thing. Your buds say the same thing;-)...JAS
 
Thanx, the net pots are roughly 3 in above bottom of tray and I've got drain set up to where it floods bout 2 in deep. The lower roots end up completely covered.
Usually I end up with a 2in thick carpet of roots covering bottom of tray.
 
I've also thought about insulating the bottom and sides of trays to keep the root zone cooler.
I'm stuck between insulating the tray, or building like a structure that seperates bottom part of trays from grow area.
 
I run a flood and drain and actually have my pumps running 24/7 now after trying many schedules. The girls seem to like it so i have not changed it back! My pots r 3" inches off bottom with a 5" flood so two inches up into the pot. I have no air pumps as well. Not saying this is better lol just what i do!
 
Lol, sounds the same as I have my pots set. I dont flood up to the level of the pots though. I flood mine to bout an in from bottom.
I had originally checked out trays at the hydro shop, but they were way over-priced. So I went to lowes and bought their large mortar mix trays for 11 bucks a pc.
 
nice table ;) I have the same design with a 4x8 tray. I run 15min every hour «light on» 15 min every 3hours «lightoff»
 
Yup bought my totes at Canadian tire total setup was $100? For totes, pots, and water pumps, basically everything! I have 6 plants in each and designed my pump nozzles to floom as well.
 
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