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ebb and flow pots

Ebb + Flow (Flood + Drain)

Ebb & Flow

The ebb and flow or flood and drain method works by flooding the grow area with nutrient solution at specific intervals, which then drain back into a reservoir containing a pump on a timer. This type of flood and drain hydroponics system is ideal for plants that are used to alternating periods of dryness to wet. The four basic components of an ebb and flow system are the reservoir with your nutrients, a plant or flood tray, a submersible water pump, and a timer. Additionally, you may require a container such as a perforated or net pot(s) with hydroponic grow media in which your plant(s) will sit inside the flood table. Once the water/nutrient solution starts filling the tray it will be absorbed by your growing medium which is where your plant’s roots will be waiting for food.

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Best Container For Ebb & Flow?

Well-Known Member

I’ve considered Smart Pots, but I noticed that roots would grow through them. Would square plastic containers be my best bet? I figured I’d use one of those filled with Hydroton and either Rockwool, Oasis Cubes or Sure To Grow cubes.

Any input on either of these would be helpful. I’m using FoxFarm nutrients.

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Clown Baby
Well-Known Member

Id go straight hydroton for a flood/drain system. Rockwool and STG hold too much water for my liking.

Have you tried the smart pots in ebb/flow yet? I’ve considered using them. Roots are going to grow out the bottom of regular pots, too.

Well-Known Member

Yeah but the roots grow through the container, not just the bottom. I’ve read it was a hassle to remove the leftover roots out of the fabric bag.

If I went straight hydroton, where would my seed sit?

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hellraizer30
Rebel From The North
dadio161
Well-Known Member
chrishydro
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dadio161
Well-Known Member
Well-Known Member

I use 4″ rock wool cubes at least 2 feet of roots come out of my plants. I’ve already bought enough hydroton to fill my table since I got one hell of a deal on it, so I was thinking of 6″ net pots filled with hydroton using 1″ rockwool cubes and the rest of the hydroton filling the table.

The 4″ rockwool cubes I’m using now are killer though, I have a monster plant growing out of it, I just want something more contained. You can’t move net pots around? I guess it would damage the roots.

I think my roots grow out the cube so much because I have my table covered, and they’re just 4″.

hellraizer30
Rebel From The North
Clown Baby
Well-Known Member

Yeah but the roots grow through the container, not just the bottom. I’ve read it was a hassle to remove the leftover roots out of the fabric bag.

If I went straight hydroton, where would my seed sit?

I germ seeds in peat pellets. Once they’re about an inch tall i put em into pots with hydroton. If I go clones with an aerocloner, they go straight into hydroton. If I root clones in blocks, (rockwool or peat pellets) I drop the blocks into hydroton once rooted.

I don’t do the wet paper towel method because handling the taproot is no bueno. Peat pellets give me the best results for germing seeds. They’re loose enough that if the seed germs and the taproot is facing up, there’s enough space for them to move around and get oriented right side up. Rockwool is tighter, and the seeds cant always turn themselves around without intervention.

I originally thought you were asking about which medium to fill your pots, not which medium to germ your seeds

I've considered Smart Pots, but I noticed that roots would grow through them. Would square plastic containers be my best bet? I figured I'd use one of those…