closed

My shipper is sending the fish tomorrow morning to take advantage of better weather in his area. I can not add any more to this order. Sorry, Jay

I would like to build a loop for my fishwall. Does the loop need to be on the horizontal plane, or can it be vertical? My idea is to run the PVC under the top shelf of my unit, down under the second shelf, then back to the top. The upper piece will supply air to 6 or 7 10 gallon tanks. The lower...

After seeing Dave's setup with the AV-50 air pump, I am very impressed to the point I bought a AV-50 (buying still) cheaply. How does the closed loop system works? Should I make the system into a loop with drops of silicon tubing into the tank? Where can I buy some nickel plated valve with...