The Vortex Diatom Filter has been around for decades. I've had many over the years but they don't make them like they used to. It's basically a glass jar that you put diatomaceous earth and optional powdered carbon into . Water from your system mixes with this "mud" and coats a filter bag in the jar.The water gets forced through the mud and is cleaned down to 1 micron and then pumped back to your aquarium. It has saved me countless times over the years when the water quality gets compromised. A good example of it's usefulness is years ago I tried to fix a cyano problem with Chemi Clean. There was tons of it in the tank. After I added the Chemi Clean things started to go bad. All that cyano dying at once polluted the water so bad my fish were at the water surface gasping. They were going to die. I threw on that filter with a good dose of powdered carbon and in an hour the fish were noticably better. In two hours the tank was sparkling clean and though some fish had damaged fins they all were fine. I would have lost them all if I hadn't had that diatom filter. It's the powdered carbon that does the trick.
The problem with the Vortex filter is that it is clumsy and difficult to charge and clean. On top of that now they are cheaply made and the motor doesn't last long. When my motor died, I removed it and pluged up the hole where the shaft entered the jar. Then I put a submersible pump in my sump and connected it to that. Works like a charm.
The problem with the Vortex filter is that it is clumsy and difficult to charge and clean. On top of that now they are cheaply made and the motor doesn't last long. When my motor died, I removed it and pluged up the hole where the shaft entered the jar. Then I put a submersible pump in my sump and connected it to that. Works like a charm.