I use just a simple aqua clear hob on my qt tank, never had an issue with it yet. even during power outages. it fires right back up.
Joe
I was using a hang on the back AquaClear on one of my quarantine tanks. If I unplugged this filter and then plugged it back in to the power it always lost siphon 100% of the time. I had to always restart the siphon by pouring water into the top of the filter. I liked the design and it gets fantastic reviews on Amazon, but I stopped using this filter due to the one I had would not restart during a power failure. I do not recommend this filter for any tank from my experience with it. Maybe you got an extra good one?
I have two of the Tetra Whisper internal power filters that do restart by themselves in the event of a power failure. One has about twice the amount of water flow than the other one even though they are the same exact model. So far this brand has worked great for me.