Just wondering how many fellow fish keepers are using AC/DC air pumps on there tanks nowadays?
I already had 2 of these (Kintons KTA9000 on a 115 gallon and a Hailea CP-60 on a 375 gallon) and luckily had just purchased a third one (RS Electric RS-9000) a couple of days ago for a newly set up Arowana grow out tank -- because last night a hellish monsoon storm blew through our area and the electricity was out for about 5 hr.
Unfortunately my usual back-up (car battery hooked up to an inverter) was at the shop being charged. But my ac/dc pumps saved the night, kicking on automatically and then running the whole time. Besides the air stones and sponge filters in the tanks, I also have air stones that I can open at the bottom of my main, internal corner filters (under the bags of bio-media), so could keep the beneficial bacteria of these going as well.

Downsides of AC/DC air pumps are that they're more expensive, usually somewhat louder, and for sure larger sized for the same air output so as to accommodate the internal back-up battery etc. -- but for me the peace of mind and safety of my fish (esp. if I'm not home) is well worth these trade offs.
I mostly only have easy access to pumps from China market, would be interested to see others you might be using on your tanks.
I already had 2 of these (Kintons KTA9000 on a 115 gallon and a Hailea CP-60 on a 375 gallon) and luckily had just purchased a third one (RS Electric RS-9000) a couple of days ago for a newly set up Arowana grow out tank -- because last night a hellish monsoon storm blew through our area and the electricity was out for about 5 hr.
Unfortunately my usual back-up (car battery hooked up to an inverter) was at the shop being charged. But my ac/dc pumps saved the night, kicking on automatically and then running the whole time. Besides the air stones and sponge filters in the tanks, I also have air stones that I can open at the bottom of my main, internal corner filters (under the bags of bio-media), so could keep the beneficial bacteria of these going as well.

Downsides of AC/DC air pumps are that they're more expensive, usually somewhat louder, and for sure larger sized for the same air output so as to accommodate the internal back-up battery etc. -- but for me the peace of mind and safety of my fish (esp. if I'm not home) is well worth these trade offs.
I mostly only have easy access to pumps from China market, would be interested to see others you might be using on your tanks.
