Backyard Aquaponics
A place to discuss aquaponics

Steve, aren't you a little old for Captain Planet????

I was going to say "aren't you a little young for Captain Planet?"

meh.

"By our powers Combined..."

Did you that the american guy who financed the creation of Captain Planet is probably going to finance integrated and AP food production tower in the US.
And he has stopped growing cows to go back to buffalos because they have a smaller environement foot print.
Anyway couldn't we create an AP super hero?

And coming back to skygazer, I think it would be cheaper to divide one of the air lines and plug to the venturi than buying a new 3W pump.

thanks for all the suggestions. I think I will split the current outlet from the 3W into 2, 1 going to a air stone, the other injeected to the return of the sump pump. money will be invested in a battery backup air pump.

I have a question

can you have too much aeration and too much DO

I am building a 4000l system of 4 x 1000l tanks and am debating whether to fit up a large aerator in one tank or four small ones in each tank

Better one big one that gives air to air stones in each i'd say.
That is less problems for you to play with.
Do a repartitor in a PVC pipe with lots of outlets for air lines, plug the big pump at one end and block the other end. The larger the repartitor the best the air is reparted in each air line.