Grow Mediums What do you use for movement and aeration?

[MassMom]

High!

What do you DWC guys/gals use for aeration in your pots? I got THIS 400gpm water pump the other day from a friend for 10 bucks and it is amazing! I cant use it quite on max as it is to powerful, but the added Venturi aeration kit makes the water bubble and churn like crazy. I took a little VIDEO and posted it on YouTube. I was using an external dual air pump with (2) stones, but it just didnt seem to be doing what I wanted, and the humming of the air pump sounded like a jet taking off, it drove me crazy. (Like there isn't enough noise already from the exhaust fan and (2) rotating fans in the tent! Stealth? NOT) The new water pump is virtually silent.

 

[woody]

Hey dude, i might be asking a stupid question but where does the air get into the water with this set up?

 

[Muddy]

You're going to damage the crap out of your roots. I use that same pump to run a 2 tote, 20 gallon recirculating system. It's not meant for that purpose and will likely damage your roots so bad your plant will suffer.