Hey bOb, thanks for stopping by - a lot has been said so I'll do my best to answer.
When growing in DWC buckets (the regular 20l size) I would too fill my water level until it was touching the net pot, or maybe half an inch below (powerful pumps provide enough bubbles to cover the gap as you said earlier), so I'm not aggressively disagreeing with you. However I have had issues in the past with turbulence in the water causing new roots to snap off, I'm hoping by leaving a 2" gap and forcing them to grow outwards and downwards to find the water will strengthen them somewhat and be immune to the turbulence at their young age.
As I'm sure you noticed this is a DIY res so I have no idea if this system will actually get up and running, it's just a test. I can see myself making lots of changes/adjustments as time goes on, maybe one being the gap between the netpot and water level.
The slight yellowing of this girl I think is down to her just being a greedy b**ch! MoonStone is new to us all but we quickly discovered her insatiable hunger. She had plain water for the first few days then yesterday and today I gave her 5ml of the res water via syringe to ensure there is moisture in the root riot cube (cant see it now because I filled with pebbles), so I could have started her off with more food to avoid this - doubtful that it has anything to do with the air gap between net pot and water level but I appreciate your input all the same. I think generally both methods will end up with roots in the water, just gonna be one of those things that gets chocked up to preference.
When I do another grow in a bucket I will fill it as you do to compare the results brother, this is only my third DWC grow and I'm still learning as I go.
:Sharing One:
When growing in DWC buckets (the regular 20l size) I would too fill my water level until it was touching the net pot, or maybe half an inch below (powerful pumps provide enough bubbles to cover the gap as you said earlier), so I'm not aggressively disagreeing with you. However I have had issues in the past with turbulence in the water causing new roots to snap off, I'm hoping by leaving a 2" gap and forcing them to grow outwards and downwards to find the water will strengthen them somewhat and be immune to the turbulence at their young age.
As I'm sure you noticed this is a DIY res so I have no idea if this system will actually get up and running, it's just a test. I can see myself making lots of changes/adjustments as time goes on, maybe one being the gap between the netpot and water level.
The slight yellowing of this girl I think is down to her just being a greedy b**ch! MoonStone is new to us all but we quickly discovered her insatiable hunger. She had plain water for the first few days then yesterday and today I gave her 5ml of the res water via syringe to ensure there is moisture in the root riot cube (cant see it now because I filled with pebbles), so I could have started her off with more food to avoid this - doubtful that it has anything to do with the air gap between net pot and water level but I appreciate your input all the same. I think generally both methods will end up with roots in the water, just gonna be one of those things that gets chocked up to preference.
When I do another grow in a bucket I will fill it as you do to compare the results brother, this is only my third DWC grow and I'm still learning as I go.
:Sharing One: