Hey have a small fish tank room running. Right now I have 9 tanks in total. I have 1-125 gallon..1-70 gallon..1-65 gallon..1-45 gallon..3-33 gallons.. and 2-20 gallon tanks...I am currently running 2 Aqua Clears 300/70 and 1 500 and 1 200 model and also 2 air pumps with double air intakes. Trying to save on hydro usage and was thinking of buying an air pump and using it on all the tanks I have with Hydro Sponges. Was looking to buy one from Jehmco...any thoughts on the idea of switching over to this system. Any models out there that run forever and use little power...Thanks.