Roadblock
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Your problem is too much moisture not enough air and using a heat may under the cloner will cook them and create pathogens, you want a consistent temp and atmosphere during cloning.
A simple, guaranteed low maintenance way to clone .
I use Rock wool cubes, pucks are the same deal, prepare them with a soak don't squeeze them out it messes with the fiber and drainage and will not hurt a thing being fully water-laden going in
I don't use the hole in the cube I make my own off center and nearer an edge for 2 reasons, its a better fit on the clone to make my own hole, and it's closer to air being nearer the edge.
My cloner trays have 3 holes drilled into the bottom of the tray, the cloners fit inside the lip of a bigger tray which is filled with water to about an inch below the clone tray, the heat mat is put under the large water tray, mine is set to 27c . The clones are taken during the night cycle and placed into cubes and into the cloner when the lights go on they will be standing like they still on mum, the vents are wide open from the get-go so you have airflow with no stagnant wet air suffocating the clones it will be over 90% humidity inside the dome with the vents wide open, it is drawing humidity from the water in the tray below. When you want to lower the humidity inside the clone box just pop anything small under the dome lid that will knock about 10% down, you can regulate by how much open the side is. I also have the room the clone unit sits in heated to keep inside the dome at 24-25c . it will creep over that during the heat of the day but it doesnt run the risk of cooking them with heat mat and stale air, I use Inkbird controllers on both the heat mat for the water and on the heater for room temp.
Good luck this will not fail.
These clones are next day after cutting notice vents wide open, it will be 100% strike rate, and they were taken from mothers 7 days into flower because of an accident, they will still all strike, Im finding you basically do nothing they don't even need water for a week or so because of the high humidity airflow.
A simple, guaranteed low maintenance way to clone .
I use Rock wool cubes, pucks are the same deal, prepare them with a soak don't squeeze them out it messes with the fiber and drainage and will not hurt a thing being fully water-laden going in
I don't use the hole in the cube I make my own off center and nearer an edge for 2 reasons, its a better fit on the clone to make my own hole, and it's closer to air being nearer the edge.
My cloner trays have 3 holes drilled into the bottom of the tray, the cloners fit inside the lip of a bigger tray which is filled with water to about an inch below the clone tray, the heat mat is put under the large water tray, mine is set to 27c . The clones are taken during the night cycle and placed into cubes and into the cloner when the lights go on they will be standing like they still on mum, the vents are wide open from the get-go so you have airflow with no stagnant wet air suffocating the clones it will be over 90% humidity inside the dome with the vents wide open, it is drawing humidity from the water in the tray below. When you want to lower the humidity inside the clone box just pop anything small under the dome lid that will knock about 10% down, you can regulate by how much open the side is. I also have the room the clone unit sits in heated to keep inside the dome at 24-25c . it will creep over that during the heat of the day but it doesnt run the risk of cooking them with heat mat and stale air, I use Inkbird controllers on both the heat mat for the water and on the heater for room temp.
Good luck this will not fail.
These clones are next day after cutting notice vents wide open, it will be 100% strike rate, and they were taken from mothers 7 days into flower because of an accident, they will still all strike, Im finding you basically do nothing they don't even need water for a week or so because of the high humidity airflow.
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