Quote:
Originally posted by uksmoke
Hi there BPP best regards to you - great column and i am looking forward to building one of these as my next experiment.
I currently favour NFT.
One question so far regarding the DWC bubbler method.
The airpump provides oxygen to the solution and serves no other purpose - correct?
If this is the case - how does the plant remain watered? - is the net cup suspended IN the water with the grow rock / rockwool soaking up nutes through cappiliary action?
If so - this would mean that during the initial stages the water level must be kept very high in the bucket whilst the plant develops a root system.
Is my thinking right???
|
Correct. Initially, you keep the water level just under the net pot so the bubbles from the circulating air keep a fine mist spraying on the pot. If your lights cause your grow area to be too hot and your rockwool starts to dry out, you can just get a cupful of your reservoir water and pour over the rockwool daily until the roots hit the water. Once the roots come on out and reach the water, you can ease up on the water level and watch your plants explode into growth.