Quote Originally Posted by tikiroom
GaGrown,

I have been using a venturi that I made to get more dissolved oxygen in the water. It has been working great!
As far as lowering the res to 58*F I have found that it is to hard to maintain without a water chiller.
The res stays right around 70*F, and with the use of beneficial bacteria and the venturi she has been thriving.
That's great! I just thought I would mention it,cause that is the norm for most operating res. tanks. Since you have it under control..:thumbsup: Adding the oxygen to the water at that temp. will make it harder to uptake the added oxygen,by the roots.. Lookin' good,My Brutha!