Wet feet- rockwool

pegboy

pegboy

Well-Known Member
Anyone have any good tips on how to draw some of the water out of my rockwool? Got some 3 week old seedlings/plants in 6x6x4 cubs and they are not responding great to the amount of water in the cubes. I'm only watering every 4ish days not because they need it but just to get some fresh water in there, BTW I'm running classic ebb and flow. I'm thinking about folding up some paper towels and placing them under the rockwool to draw some of the water out? Any other ideas? Thanks

Heres a look at my unhappy/overwatered plants. Ha.

g 11-21-1.jpg
 
Wastei

Wastei

Well-Known Member
pegboy said:
Anyone have any good tips on how to draw some of the water out of my rockwool? Got some 3 week old seedlings/plants in 6x6x4 cubs and they are not responding great to the amount of water in the cubes. I'm only watering every 4ish days not because they need it but just to get some fresh water in there, BTW I'm running classic ebb and flow. I'm thinking about folding up some paper towels and placing them under the rockwool to draw some of the water out? Any other ideas? Thanks

Heres a look at my unhappy/overwatered plants. Ha.

View attachment 5440814
Click to expand...
Every 4-ish days sounds off. I think you transplanted in to too big cube early on. You need way smaller volumes in RW, even smaller than growing in Coco coir. A smaller cube fed several times a day and when you got good root development all over the cube you transplant in to a slightly larger one.

You should feed at least two times a day and adjust your medium volume according to that. You're treating a hydro grown plant like soil and that will cause all sorts of problems. Do you aerate your nutrient reservoir and how do you feed the plants? How long is the flooding and how do you draw the water out? With regular feedings and the right volume it's pretty hard to over water rock wool.
 
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