What size Airstone & Pump do I need?

What size Air Pump & Air Stone is sufficient for a 40 gallon resovoir. I'm using the AeroFlo 36 site.

I have looked everywhere on this forum for this answer, and I cannot find it anywhere.

Don't shoot for mere sufficiency. More bubbles are always better. Get a commercial grade pumps and experiment, start with two 12 inch stones and think about adding more.

wait, the aeroflo 36 comes with a pump right?

http://www.generalhydroponics.com/genhydro_US/waterpumps.html

Illegal Smile said:

Don't shoot for mere sufficiency. More bubbles are always better. Get a commercial grade pumps and experiment, start with two 12 inch stones and think about adding more.

Click to expand...

yeah maybe just 1.

While ON, the reservoir will also benefit from the falling water from the grow tubes.

Also a strong believer in running cheap aquarium chillers in these systems. Some may not require them. Must keep your water below 68 degrees F.

Illegal Smile said:

Don't shoot for mere sufficiency. More bubbles are always better. Get a commercial grade pumps and experiment, start with two 12 inch stones and think about adding more.

Click to expand...

Thanks for responding bro; I bought a small 10$ air pump and a 5$ 8" airstone about a week ago; and i've not really noticed any difference in using it. I just want the recommended pump size, and definately don't have the money to spend on overkill.

gvega187 said:

wait, the aeroflo 36 comes with a pump right?

http://www.generalhydroponics.com/genhydro_US/waterpumps.html

Click to expand...

Yes, the AeroFlo comes with a 1000+ GPH WATER pump, but does not include an Air Pump or Airstone to oxygenate the res water.

gvega187 said:

yeah maybe just 1.

While ON, the reservoir will also benefit from the falling water from the grow tubes.

Also a strong believer in running cheap aquarium chillers in these systems. Some may not require them. Must keep your water below 68 degrees F.

Click to expand...

Yes, the drain tubes also generate bubbles of water when dropping back into the resovoir. My pump is running constantly, so I have constant bubbles. I also have the 1/10th HP Ecoplus water chiller rated to chill 50 gallons of water -30 degrees below ambient room temperature, but it barely keeps the temps below 71-72. I've even got a fan blowing directly on my chiller as recommended for ventilation and my room air never gets above 75 degrees, but my chiller runs constantly.... Very inefficient.

bump; anyone else?

I use porous soaker hose for drip irrigation as an air stone 50ft~ $5. I also use the $10 walmat brand pump but my res is only about 6 gal... but more= better, also a cool res =more DO. When it comes to air go as big as you can. But anything designed for a 40 gal fish tank should be fine fish need more air than plants usually.