[futo]

Got this in a trade but kinda lost on how to set it up! If anyone know what hooks up to #1 , #2 , #3 (this line come in from the top) please let me know! thank you!

 

[Rick O]

#1 is your bubble counter. The line from your CO2 tank connects there. #2 looks like where you would supply water from your tank via a powerhead. #3 although I can't see it but it should be where you return water to the tank.

You should have a valve to control the water flow through the reactor. I would set it to a fast drip. The bubble count depends on what's in the tank. I would start it low, 20-40 BPM, wait a few days, test the water and adjust from there.

 

[rabeiler]

Not completely sure from you picture, but here is the general concept regarding how the reactor works.

You should have a circulating pump for the reactor and a power head in the sump that provides positive pressure to feed the reactor. The circulating pump continually pumps water through the media in a loop. A small amount of liquid is released from the loop back into your tank. The output of the power head in your sump adds new water to the reactor loop. CO2 is injected into the loop, typically on the input side of the circulating pump.

Hope this helps,
Ross