Rockwool feeding

I'm looking for suggestions on watering times for rockwool. I have a 4" stacked on top of a 6" cube and top feed. I'm currently in week 3 of flower and was thinking about feeding 110ml each plant three times a day. Which is three minutes each time with my system. I'm dialing it in to get a runoff around midday: 3min,3min,4min and 3min,4min,3min schedules are what I've been thinking about doing. Also upping to 4 times by week 6ish was an idea as well. Curious on peoples opinions.

Only way to find out it to give it a try. Trial and error proves the most educational, a hard lesson learned is one you won't soon forget!

completely soak them as many times a day as they will dry down.

The cubes will create salt pathways if they dry down and become hydrophobic easily. make sure to saturate them each feeding/fertigation(if your slow) in order to gauge proper dry down and fertigation intervals.

at one farm i worked at we feed/fertigated(if your slow) 6 times a day 200-300 mls each cube. 6in rockwool cubes.

cubes should never be soaked when lights go off and should be soaked when lights come on, in veg we hand watered to the intervals/volumes were random but daily and would trend with plant health

HydroDawg421 said:

Only way to find out it to give it a try. Trial and error proves the most educational, a hard lesson learned is one you won't soon forget!

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Thanks dog

Samwell Seed Well said:

completely soak them as many times a day as they will dry down.

The cubes will create salt pathways if they dry down and become hydrophobic easily. make sure to saturate them each feeding/fertigation(if your slow) in order to gauge proper dry down and fertigation intervals.

at one farm i worked at we feed/fertigated(if your slow) 6 times a day 200-300 mls each cube. 6in rockwool cubes.

cubes should never be soaked when lights go off and should be soaked when lights come on, in veg we hand watered to the intervals/volumes were random but daily and would trend with plant health

Click to expand...

You say they should be soaked when the lights come on? Was that a typo?

i started our fertigation times 25 min after lights came on , and if they were dry the last feeding was increased so the cubes were still at least a little wet. if they dry down, over time from salt build up, it becomes harder for the rockwool to feed your roots.

Samwell Seed Well said:

i started our fertigation times 25 min after lights came on , and if they were dry the last feeding was increased so the cubes were still at least a little wet. if they dry down, over time from salt build up, it becomes harder for the rockwool to feed your roots.

Click to expand...

Ok thank you for clearing that up. Good info there. Appreciate it